Three-dimensional multi-layer folding and expanding ecological fish nest facility

Abstract

The application discloses a three-dimensional multi-layer folding and extending type ecological fish nest facility, which comprises a main body support structure and a folding fish nest mechanism arranged on the main body support structure. The main body support structure comprises a vertically extending main body support column body, and a plurality of sectional support rings coaxially arranged on the main body support column body are slidably connected to the main body support column body. The folding fish nest mechanism comprises fish nest partition ring plates fixed to the outer side of the sectional support rings and coaxially arranged with the sectional support rings, and a plurality of radial partition canvases are fixed between adjacent two fish nest partition ring plates. The facility adopts a three-dimensional multi-layer folding and extending type structure design, and through cooperation of the main body support structure and the folding fish nest mechanism, folding storage and extending deployment of the ecological fish nest facility are realized. In the folding state, the overall volume of the facility is greatly reduced, the difficulty of transportation, hoisting and underwater laying is significantly reduced, and the facility can be flexibly adapted to the ecological restoration and fishery breeding laying requirements of different water depths and different water areas.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a three-dimensional, multi-layered, foldable, and extendable ecological fish nest facility. Background Technology

[0002] In freshwater aquaculture and river and lake ecological restoration, ecological fish nests are core facilities that provide fish with habitats, predator shelter, breeding grounds, and foraging opportunities. They play a crucial role in improving fishery resource conservation, enhancing the aquatic ecological environment, and protecting aquatic biodiversity. However, current ecological fish nest facilities still have several shortcomings in practical application: (1) The overall volume is large, making transportation, hoisting and underwater deployment difficult. It cannot meet the flexible deployment needs of different water depths and different water areas, and the later maintenance and relocation costs are extremely high. (2) Existing folding fish nests are mostly simple planar folding structures. When unfolded, the spatial layering effect is poor, and they cannot form independent three-dimensional habitat units. The privacy and predator avoidance effect of fish habitats are poor, and it is difficult to meet the breeding and habitat needs of fish at different growth stages. (3) The existing fish nests are mostly fixed structures, and the size and connectivity of the space cannot be flexibly adjusted according to the scale of aquaculture and the characteristics of fish populations. The controllability of water exchange and feed circulation is poor, and problems such as insufficient dissolved oxygen in local water bodies and rapid spread of diseases are likely to occur. (4) The existing fish nests are mostly fixed net structures, which cannot flexibly control the opening and closing of the access channels, making it difficult to achieve graded management of fish and prevent natural enemies from invading. In addition, the nets are prone to loosening and damage, resulting in poor structural stability and insufficient durability for long-term underwater use.

[0003] Therefore, existing ecological fish nest facilities need further improvement and optimization. Summary of the Invention

[0004] The purpose of this invention is to provide a three-dimensional, multi-layered, foldable, and extendable ecological fish nest facility to solve the problems mentioned in the background art, such as the difficulty in deployment, poor structural stability, insufficient spatial control flexibility, weak environmental adaptability, and high operation and maintenance costs of existing ecological fish nest facilities.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A three-dimensional, multi-layered, foldable, and extendable ecological fish nest facility includes a main support structure and a foldable fish nest mechanism installed on the main support structure. The main support structure includes a vertically extending main support column, on which multiple segmented support rings are slidably connected and arranged coaxially. The folding fish nest mechanism includes a fish nest dividing ring plate fixed to the outside of the segmented support ring and arranged coaxially therewith, and multiple radial dividing canvases are fixed between two adjacent fish nest dividing ring plates. The main support column is fixed with a curtain support ring coaxial with it at the top, and a cylindrical fish nest outer curtain coaxial with it is fixed to the lower side of the curtain support ring. Multiple fish nest entrance and exit holes are provided on the outer curtain of the fish nest, running radially through it.

[0006] Preferably, the outer surface of the main support column is provided with multiple spline grooves that extend spirally around its axis, and the inner side of the segmented support ring is provided with multiple spline protrusions, with each spline protrusion corresponding to and slidingly constrained in each spline groove.

[0007] Explanation: The helical constraint of the spline protrusion and spline groove allows the multi-section support rings to unfold and fold synchronously and orderly during axial lifting and lowering, avoiding problems such as twisting, jamming, and tearing of the radial separation canvas between adjacent fish nest separation ring plates, and ensuring the smoothness of unfolding and folding actions.

[0008] Preferably, a curtain ring support mechanism is provided at the outer edge of the fish nest partition ring plate. The curtain ring support mechanism includes a plurality of ring support mechanism connection holes opened on the outer side of the fish nest partition ring plate and extending radially therefrom. A ring support extension rod is slidably connected in the ring support mechanism connection hole. A curtain ring support arc rod is fixed at one end of the ring support extension rod outside the ring support mechanism connection hole; The ring support mechanism connection hole is provided with a ring support extension drive rod for driving the ring support extension rod to move.

[0009] Explanation: The curtain ring support mechanism is used to provide multi-point, uniform radial support to the inner wall of the outer curtain of the fish nest, solving the problem of loosening, collapse, and wrinkling of the outer curtain of the fish nest under the impact of underwater water flow, ensuring that the outer curtain of the fish nest always maintains a stable cylindrical shape and maintains the volume stability of each independent space of the fish nest.

[0010] Preferably, the fish nest dividing ring plate is provided with a longitudinal communication mechanism, which includes a longitudinal communication groove opened on the top of the fish nest dividing ring plate and extending radially along the fish nest dividing ring plate, and a longitudinal communication control plate is slidably fitted in the longitudinal communication groove. A vertically penetrating longitudinal opening is provided in the longitudinal connecting groove; The longitudinal connection control plate has multiple vertically penetrating longitudinal water flow mating holes, and the longitudinal connection groove has multiple vertically penetrating longitudinal water flow holes. A longitudinal communication drive connection hole is provided on the inner side wall of the longitudinal communication groove, extending radially along the fish nest partition ring plate. A control board drive push rod is slidably connected in the longitudinal communication drive connection hole. One end of the control board drive push rod outside the longitudinal communication drive connection hole is fixedly connected to the longitudinal communication control board. The longitudinally connected drive connection hole is equipped with a control board sliding drive rod for moving the drive control board push rod.

[0011] Description: The longitudinal connection mechanism is used to flexibly control the connection and isolation between two adjacent independent fish nests in the vertical direction, realizing hierarchical control and flexible division of the habitat space inside the three-dimensional multi-layered folding and extending ecological fish nest facility, adapting to the habitat and breeding needs of different growth stages and different fish species; the longitudinal connection control plate is driven to slide radially along the longitudinal connection groove by the sliding drive rod of the control plate, which can realize the opening and closing control of the longitudinal connection opening. When the longitudinal connection opening is closed, the longitudinal water flow hole and the longitudinal water flow matching hole are coaxially aligned and connected, which can ensure the free flow of water between the upper and lower layers inside the three-dimensional multi-layered folding and extending ecological fish nest facility, maintain the uniformity of dissolved oxygen and water temperature in each layer, avoid the problem of water deterioration in the closed space, and take into account the dual needs of spatial isolation and water exchange.

[0012] Preferably, the fish nest inlet / outlet hole is provided with an inlet / outlet opening and closing mechanism, which includes an inlet / outlet opening and closing support ring fixed in the fish nest inlet / outlet hole. The inlet / outlet opening and closing support ring has multiple rotating shaft connection holes that are parallel to its axis and pass through it on its side. An opening and closing control rotating shaft is rotatably connected in the rotating shaft connection holes, and an opening and closing control fan plate is fixed on the opening and closing control rotating shaft. A synchronous opening and closing gear is fixed at the end of the opening and closing control shaft away from the opening and closing control fan plate. A synchronous opening and closing drive ring is rotatably connected to the outside of the opening and closing support ring. A synchronous opening and closing gear ring is fixed to the inside of the synchronous opening and closing drive ring. The synchronous opening and closing gear and the synchronous opening and closing gear ring are meshed and connected.

[0013] Description: The opening and closing mechanism is used to precisely control the opening and closing status of the fish nest entrance and exit, enabling the management of fish entering and exiting the independent space of the fish nest. It also serves to prevent the invasion of predators and to manage tiered aquaculture. Through the meshing transmission of the synchronous opening and closing gear ring on the inner side of the synchronous opening and closing drive ring and multiple synchronous opening and closing gears, a single drive source can drive multiple sets of opening and closing control shafts to rotate synchronously, thereby driving all opening and closing control panels to deflect synchronously. This ensures the synchronicity and consistency of the opening and closing action of the fish nest entrance and exit, avoiding problems such as jamming and poor sealing caused by asynchronous opening and closing of multiple panels. The opening and closing control panels adopt a multi-piece fan-shaped structure, which can be spliced ​​together to form a complete closed structure when closed. This ensures that when the fish nest entrance and exit are closed, predators in the water are effectively prevented from entering the independent space of the fish nest, providing a safe habitat for fish breeding.

[0014] Preferably, the inner side of the synchronous opening and closing drive ring is provided with a drive connection ring groove coaxial with it, and the outer side of the opening and closing support ring is provided with a motor mounting hole that extends radially and communicates with the drive connection ring groove. A synchronous drive motor is fixed in the motor mounting hole, a synchronous drive gear is fixed on the output shaft of the synchronous drive motor, and a synchronous drive gear ring is fixed in the drive connection ring groove. The synchronous drive gear and the synchronous drive gear ring are meshed and connected.

[0015] Description: This structure provides automated drive power for the inlet and outlet opening and closing mechanism, enabling remote, precise, and automated control of the opening and closing status of the fish nest inlet and outlet. Through the meshing transmission between the synchronous drive gear and the synchronous drive ring on the output shaft of the synchronous drive motor, the rotational power of the synchronous drive motor is converted into the circumferential rotational motion of the synchronous opening and closing drive ring. The motor mounting hole and the drive connecting ring groove adopt a closed interconnection structure, which can protect the drive transmission components and prevent mud, sand, and debris in the water from entering.

[0016] Preferably, the lower end of the main support column is provided with an anchoring counterweight mechanism, which includes a counterweight box fixed to the lower end of the main support column. The main support column has a hollow structure inside, and the interior of the main support column is connected to the interior of the counterweight box. A guide cone with its tip pointing upward is fixed at the bottom of the counterweight box. The top of the main support column is threaded with a counterweight and a sealing end cap.

[0017] Note: The anchoring counterweight mechanism is used to provide underwater anchoring and fixing force for the entire fish nest facility, ensuring the verticality and stability of the fish nest facility when deployed underwater, and preventing the facility from tipping over or shifting under the impact of water flow.

[0018] Preferably, the uppermost segmented support ring is provided with a buoyancy deployment mechanism, which includes multiple buoyancy tensioning rods fixed on the upper side of the segmented support ring. A buoyancy constraint ring with a vertically extending axis is fixed at the upper end of the buoyancy tensioning rod, and a hollow buoyancy tank is fixed in the buoyancy constraint ring.

[0019] Description: The buoyancy deployment mechanism provides continuous and stable axial traction force for the automatic deployment of the folding fish nest mechanism, enabling the folding fish nest mechanism to automatically deploy underwater without power. This eliminates the need for manual underwater operations or additional hoisting equipment, significantly simplifying the underwater deployment process of the three-dimensional multi-layered folding and extending ecological fish nest facility. The constant buoyancy generated by the hollow buoyancy tank in the water is transmitted to the uppermost segmented support ring via the buoyancy tensioning rod, causing the segmented support ring to rise axially along the main support column. Subsequently, the radially separated canvas sequentially pulls each lower segmented support ring to rise synchronously, achieving the orderly and stable deployment of the entire folding fish nest mechanism. Multiple buoyancy tensioning rods are evenly arranged circumferentially, ensuring that the buoyancy traction force is evenly transmitted to all parts of the segmented support rings, avoiding problems such as tilting or jamming during the rise of the segmented support rings, and ensuring the smoothness of the deployment action.

[0020] Compared with the prior art, the beneficial effects of the present invention are reflected in the following aspects: 1. The present invention has a reasonable structural design and adopts a three-dimensional multi-layer folding and extending structural design. Through the cooperation of the main support structure and the folding fish nest mechanism, the ecological fish nest facility can be folded and extended. In the folded state, the overall volume of the facility is greatly reduced, which significantly reduces the difficulty of transportation, hoisting and underwater deployment. It can flexibly adapt to the ecological restoration and aquaculture deployment needs of different water depths and different water areas. 2. This invention is easy to operate. Through the coordinated cooperation of the buoyancy deployment mechanism and the anchoring counterweight mechanism, the underwater deployment of the three-dimensional multi-layer folding and extending ecological fish nest facility is automated and standardized. After the facility is lowered into the target water area, only the counterweight medium needs to be added. The folding fish nest mechanism can be automatically and orderly deployed by the constant traction force of the empty buoyancy tank. There is no need for manual underwater operation or multi-equipment coordinated hoisting, which greatly simplifies the deployment operation process and reduces the difficulty of operation and labor costs. At the same time, the constraint of the spiral spline ensures the smoothness of the deployment action and the structural stability. 3. The present invention, through the combination of multi-layer fish nest dividing ring plates, radial dividing canvas and fish nest outer curtain, forms multiple independent three-dimensional space fish nest units in the unfolded state, providing fish with a habitat, breeding and foraging space with strong privacy and good predator avoidance effect. It can effectively meet the habitat and breeding needs of fish at different growth stages and different populations, and greatly improve the fishery resource conservation effect and aquatic biodiversity protection capacity. 4. This invention, through the coordinated arrangement of a longitudinal connecting mechanism and an inlet / outlet opening / closing mechanism, achieves flexible regulation and hierarchical management of the habitat space of a three-dimensional, multi-layered, foldable, and extendable ecological fish nest facility. It can flexibly adjust the connectivity of each independent fish nest space and the opening / closing range of the fish nest inlet / outlet openings according to the scale of aquaculture and the characteristics of the fish population, balancing the needs of free fish movement and zoned aquaculture. Simultaneously, it can effectively block the rapid spread of diseases and prevent the invasion of predators, improving the safety and flexibility of aquaculture management. Furthermore, in a spatially isolated state, it can ensure the free flow of water, maintain the stability of the internal aquatic environment of the facility, and avoid problems such as insufficient dissolved oxygen and water quality deterioration. 5. Through the setting of the curtain ring support mechanism, the present invention can form uniform and stable radial support for the outer curtain of the fish nest, ensuring that the outer curtain of the fish nest always maintains a stable cylindrical shape under the impact of water flow, avoiding problems such as loosening, collapse, and damage, and greatly improving the structural stability and durability of the three-dimensional multi-layer folding extension ecological fish nest facility for long-term underwater use; at the same time, each drive mechanism adopts a closed protective design, which can effectively avoid the wear and jamming of transmission components by underwater mud and debris, improving the working reliability and service life of the facility in complex underwater environments; 6. This invention has the dual functions of ecological restoration and aquaculture. It can be applied to the restoration of aquatic organism habitats and the enhancement and maintenance of fishery resources in natural waters such as rivers, lakes and reservoirs. It can also be applied to intensive ecological aquaculture in freshwater ponds. It has a wide range of applications and has significant ecological, economic and promotional value. Attached Figure Description

[0021] Figure 1 This is the front view of the present invention; Figure 2 This is a top view of the folding fish nest mechanism of the present invention; Figure 3 This is a top view of the curtain ring support mechanism of the present invention; Figure 4 This is a schematic diagram of the longitudinal connecting mechanism of the present invention; Figure 5 This is a schematic diagram of the opening and closing mechanism of the present invention; Figure 6 This is a right view of the opening and closing support ring of the present invention; Figure 7 This is a schematic diagram of the structure of the drive connecting ring groove of the present invention.

[0022] In the diagram, 10-Main support structure, 11-Main support column, 110-Spline groove, 12-Segmented support ring, 120-Spline protrusion, 13-Curtain support ring, 14-Anchoring counterweight mechanism, 141-Counterweight box, 142-Guide cone, 143-Counterweight filling and sealing end cap, 15-Buoyancy deployment mechanism, 151-Buoyancy tension link, 152-Buoyancy constraint ring, 153-Buoyancy empty tank, 20-Folding fish nest mechanism, 21-Fish nest partition ring plate, 22-Radial partition canvas, 23-Outer curtain of fish nest, 230-Fish nest inlet / outlet hole, 30-Curtain ring support mechanism, 31-Ring support mechanism connection hole, 32-Ring support extension rod, 33-Curtain ring support arc rod, 34-Ring support extension drive rod 40-Longitudinal connecting mechanism, 401-Longitudinal connecting opening, 402-Longitudinal water flow hole, 41-Longitudinal connecting groove, 42-Longitudinal connecting control board, 420-Longitudinal water flow mating hole, 43-Longitudinal connecting drive connection hole, 431-Control board drive push rod, 44-Control board sliding drive rod, 50-In / out opening and closing mechanism, 51-In / out opening and closing support ring, 511-Rotating shaft connection hole, 512-Opening and closing control rotating shaft, 52-Opening and closing control fan plate, 53-Synchronous opening and closing drive ring, 531-Synchronous opening and closing gear, 532-Synchronous opening and closing gear ring, 541-Drive connection ring groove, 542-Motor mounting hole, 543-Synchronous drive motor, 544-Synchronous drive gear, 545-Synchronous drive gear ring. Detailed Implementation

[0023] The following is combined with Figures 1-7The present invention will be described in detail. For ease of description, the orientations mentioned below are defined as follows: The directions of up, down, left, right, front, and back mentioned below are consistent with the directions of up, down, left, right, front, and back in the projection relationship of the respective main view or structural schematic diagram.

[0024] Example 1: A three-dimensional, multi-layered, foldable, extendable ecological fish nest facility, such as... Figure 1 As shown, it includes a main support structure 10 and a folding fish nest mechanism 20 disposed on the main support structure 10; The main support structure 10 includes a vertically extending main support column 11, on which multiple segmented support rings 12 are slidably connected; The folding fish nest mechanism 20 includes a fish nest dividing ring plate 21 fixed to the outside of the segmented support ring 12 and arranged coaxially therewith, such as Figure 2 As shown, multiple radially separating canvas pieces 22 are fixed between two adjacent fish nest separating ring plates 21; like Figure 1 As shown, a curtain support ring 13 coaxially with the top of the main support column 11 is fixed, and a cylindrical fish nest outer curtain 23 coaxially with the curtain support ring 13 is fixed on the lower side of the curtain support ring 13. Multiple fish nest entrance and exit holes 230 are provided on the outer curtain 23 of the fish nest, which runs through it radially.

[0025] like Figure 2 As shown, the outer side of the main support column 11 is provided with multiple spline grooves 110 that extend spirally around its axis, and the inner side of the segmented support ring 12 is provided with multiple spline protrusions 120, which are slidably constrained in each spline groove 110.

[0026] Example 2: Based on Example 1, such as Figure 2 As shown, a curtain ring support mechanism 30 is provided at the outer edge of the fish nest partition ring plate 21, such as... Figure 3 As shown, the curtain ring support mechanism 30 includes a plurality of ring support mechanism connection holes 31 opened on the outer side of the fish nest partition ring plate 21 and extending radially therein, and a ring support extension rod 32 is slidably connected in the ring support mechanism connection hole 31. A curtain ring support arc rod 33 is fixed at one end of the ring support extension rod 32 outside the ring support mechanism connection hole 31; The ring support mechanism connection hole 31 is provided with a ring support extension drive rod 34 for driving the ring support extension rod 32 to move. The ring support extension drive rod 34 is an existing electric telescopic rod driven by a servo motor. The outer end of the ring support extension drive rod 34 is fixedly connected to the inner end of the ring support mechanism connection hole 31, and the inner end of the ring support extension drive rod 34 is fixedly connected to the end of the ring support extension rod 32 that is located in the ring support mechanism connection hole 31.

[0027] Example 3: Based on Example 2, such as Figure 2 As shown, the fish nest dividing ring plate 21 is provided with a longitudinal connecting mechanism 40, such as... Figure 4 As shown, the longitudinal communication mechanism 40 includes a longitudinal communication groove 41 that is opened on the top of the fish nest partition ring plate 21 and extends radially along the fish nest partition ring plate 21, and a longitudinal communication control plate 42 is slidably fitted in the longitudinal communication groove 41. A longitudinal connecting opening 401 extending vertically is provided in the longitudinal connecting groove 41; The longitudinal connection control plate 42 is provided with a plurality of vertically penetrating longitudinal water flow mating holes 420, and the longitudinal connection groove 41 is provided with a plurality of vertically penetrating longitudinal water flow holes 402. A longitudinal communication drive connection hole 43 extending radially along the fish nest partition ring plate 21 is provided on the inner side wall of the longitudinal communication groove 41. A control board drive push rod 431 is slidably connected in the longitudinal communication drive connection hole 43. One end of the control board drive push rod 431 outside the longitudinal communication drive connection hole 43 is fixedly connected to the longitudinal communication control plate 42. The longitudinal connecting drive connection hole 43 is provided with a control board sliding drive rod 44 for driving the control board drive push rod 431 to move. The outer end of the control board sliding drive rod 44 is fixedly connected to the inner end of the longitudinal connecting drive connection hole 43, and the inner end of the control board sliding drive rod 44 is fixedly connected to one end of the control board drive push rod 431 that is located in the longitudinal connecting drive connection hole 43.

[0028] Example 4: Based on Example 3, such as Figure 5 As shown, an entry / exit opening and closing mechanism 50 is provided at the fish nest entry / exit hole 230. The entry / exit opening and closing mechanism 50 includes an entry / exit opening and closing support ring 51 fixed in the fish nest entry / exit hole 230. Multiple rotating shaft connection holes 511 are provided on the side of the entry / exit opening and closing support ring 51, which are parallel to its axis and pass through it. An opening / closing control rotating shaft 512 is rotatably connected in the rotating shaft connection hole 511. An opening / closing control fan plate 52 is fixed on the opening / closing control rotating shaft 512. A synchronous opening and closing gear 531 is fixed at one end of the opening and closing control rotating shaft 512 away from the opening and closing control fan plate 52. A synchronous opening and closing drive ring 53, which is coaxial with the opening and closing support ring 51, is rotatably connected to the outside of the synchronous opening and closing support ring 51. A synchronous opening and closing gear ring 532, which is coaxial with the synchronous opening and closing drive ring 53, is fixed on the inner side of the synchronous opening and closing drive ring 53. The synchronous opening and closing gear 531 and the synchronous opening and closing gear ring 532 are meshed and connected.

[0029] like Figure 7As shown, the inner side of the synchronous opening and closing drive ring 53 is provided with a drive connection ring groove 541 coaxial with it, and the outer side of the opening and closing support ring 51 is provided with a motor mounting hole 542 that extends radially and communicates with the drive connection ring groove 541. A synchronous drive motor 543 is fixed in the motor mounting hole 542, and a synchronous drive gear 544 is fixed on the output shaft of the synchronous drive motor 543. A synchronous drive gear ring 545 is fixed in the drive connection ring groove 541, and the synchronous drive gear 544 and the synchronous drive gear ring 545 are meshed and connected. The synchronous drive motor 543 is a servo motor of existing technology.

[0030] Example 5: Based on Example 4, such as Figure 1 As shown, the lower end of the main support column 11 is provided with an anchoring counterweight mechanism 14. The anchoring counterweight mechanism 14 includes a counterweight box 141 fixed to the lower end of the main support column 11. The interior of the main support column 11 is a hollow structure. The interior of the main support column 11 is connected to the interior of the counterweight box 141. A guide cone 142 with its tip pointing upward is fixed at the bottom of the counterweight box 141. The top of the main support column 11 is threaded with a counterweight and sealing end cap 143.

[0031] Example 6: Based on Example 5, such as Figure 1 As shown, the uppermost segmented support ring 12 is provided with a buoyancy deployment mechanism 15. The buoyancy deployment mechanism 15 includes multiple buoyancy tension connecting rods 151 fixed on the upper side of the segmented support ring 12. A buoyancy constraint ring 152 with a vertically extending axis is fixed at the upper end of the buoyancy tension connecting rod 151. A hollow buoyancy can 153 is fixed in the buoyancy constraint ring 152.

[0032] In practical application, the entire facility is submerged in water. The counterweight filling and sealing end cap 143 is opened to inject counterweight sand into the main support column 11. The counterweight sand flows into the counterweight box 141 along the inside of the main support column 11, so that the counterweight box 141 is supported at the bottom of the water body. The buoyancy generated by multiple buoyancy tanks 153 pulls the uppermost segmented support ring 12 through the buoyancy tensioning link 151, causing the segmented support ring 12 to move upward along the main support column 11. During the upward movement, the segmented support ring 12 rotates around the axis of the main support column 11 under the constraint of the spline protrusion 120 and the spline groove 110. Multiple segmented support rings 12 pull each other upward in sequence, causing the fish nest separating ring plates 21 to gradually move away from each other, so that the radial separating canvas 22 unfolds between two adjacent fish nest separating ring plates 21. When the radial separating canvas 22 is unfolded, it is in the radial plane of the fish nest separating ring plate 21. The outer curtain 23 of the fish nest together surrounds the perimeter of multiple fish nest dividing ring plates 21, and an independent space fish nest is formed between the adjacent radial dividing canvases 22 between two adjacent fish nest dividing ring plates 21 and between the inner sidewalls of the outer curtain 23 of the fish nest. The curtain ring support mechanism 30 supports and fixes the inner wall of the outer curtain 23 of the fish nest, making the outer curtain 23 of the fish nest more stable and constrained around the fish nest dividing ring plate 21. The inner rod of the ring support extension drive rod 34 extends and drives the ring support extension rod 32 to move and extend along the axis of the ring support mechanism connection hole 31. The ring support extension rod 32 drives the curtain ring support arc rod 33 to approach the inner wall of the outer curtain 23 of the fish nest and makes the curtain ring support arc rod 33 press and support the inner wall of the outer curtain 23 of the fish nest. Multiple fish nest entry and exit holes 230 correspond one-to-one with each independent space fish nest, allowing fish raised in the water to freely enter and exit each independent space fish nest through the fish nest entry and exit holes 230. The opening and closing of each fish nest inlet and outlet hole 230 is independently controlled by the inlet and outlet opening and closing mechanism 50. Multiple opening and closing control fan plates 52 can be spliced ​​into a disc-shaped plate to block the fish nest inlet and outlet hole 230, so that the fish nest inlet and outlet hole 230 is in a closed state. The two adjacent opening and closing control fan plates 52 are misaligned along the axis of the opening and closing support ring 51. The misalignment distance is consistent with the thickness of the opening and closing control fan plate 52, so as to avoid collision and interference between the two adjacent opening and closing control fan plates 52 when they rotate. When it is necessary to open the fish nest inlet / outlet hole 230, the output shaft of the synchronous drive motor 543 drives the synchronous opening / closing drive ring 53 to rotate around the axis of the inlet / outlet opening / closing support ring 51 through the meshing connection of the synchronous drive gear 544 and the synchronous drive gear ring 545. The synchronous opening / closing drive ring 53 then drives each opening / closing control shaft 512 to rotate synchronously through the meshing connection of the synchronous opening / closing gear ring 532 and multiple synchronous opening / closing gears 531. This causes the opening / closing control shaft 512 to drive the opening / closing control fan plate 52 to deflect towards the edge of the fish nest inlet / outlet hole 230. The multiple opening / closing control fan plates 52 move away from the fish nest inlet / outlet hole 230, keeping the fish nest inlet / outlet hole 230 in a clear state, even if the fish nest inlet / outlet hole 230 is in an open state. The longitudinal connection mechanism 40 controls whether the connection between two adjacent independent space fish nests in the vertical direction is open or closed. In the initial state, the longitudinal connection control plate 42 is located on the side away from the longitudinal connection opening 401, so that the longitudinal connection opening 401 is unobstructed in the vertical direction, that is, the connection between two adjacent independent space fish nests in the vertical direction is open. When the inner rod of the control board sliding drive rod 44 extends, it drives the control board drive push rod 431 to move along the axis of the longitudinal connecting drive connection hole 43. The control board drive push rod 431 then drives the longitudinal connecting control plate 42 to approach the longitudinal connecting opening 401, so that the longitudinal connecting control plate 42 blocks the upper end of the longitudinal connecting opening 401. At this time, the two adjacent independent space fish nests in the vertical direction are in an isolated state. Furthermore, when the longitudinal connection control plate 42 blocks the upper end of the longitudinal connection opening 401, the longitudinal water flow hole 402 and each longitudinal water flow mating hole 420 are coaxially aligned and connected, so that the water flow can pass through the longitudinal water flow hole 402 and the longitudinal water flow mating hole 420 for mutual circulation.

Claims

1. A three-dimensional, multi-layered, foldable, extendable ecological fish nest facility, characterized in that, Includes a main support structure (10) and a folding fish nest mechanism (20) disposed on the main support structure (10); The main support structure (10) includes a vertically extending main support column (11), on which a plurality of segmented support rings (12) are slidably connected. The folding fish nest mechanism (20) includes a fish nest dividing ring plate (21) fixed to the outside of the segmented support ring (12) and arranged coaxially therewith, and multiple radial dividing canvases (22) are fixed between two adjacent fish nest dividing ring plates (21). The main support column (11) is fixed with a curtain support ring (13) coaxial with it at the top, and a cylindrical fish nest outer curtain (23) coaxial with it is fixed on the lower side of the curtain support ring (13). The outer curtain (23) of the fish nest has multiple fish nest entrance and exit holes (230) that run through it radially.

2. The three-dimensional multi-layered folding and extending ecological fish nest facility according to claim 1, characterized in that, The outer side of the main support column (11) is provided with a plurality of spline grooves (110) extending spirally around its axis, and the inner side of the segmented support ring (12) is provided with a plurality of spline protrusions (120), and the plurality of spline protrusions (120) are slidably constrained in each of the spline grooves (110) in a one-to-one correspondence.

3. The three-dimensional multi-layered folding and extending ecological fish nest facility according to claim 1, characterized in that, A curtain ring support mechanism (30) is provided at the outer edge of the fish nest partition ring plate (21). The curtain ring support mechanism (30) includes a plurality of ring support mechanism connection holes (31) opened on the outer side of the fish nest partition ring plate (21) and extending radially therein. A ring support extension rod (32) is slidably connected in the ring support mechanism connection hole (31). The end of the ring support extension rod (32) located outside the ring support mechanism connection hole (31) is fixed with a curtain ring support arc rod (33). The ring support mechanism connection hole (31) is provided with a ring support extension drive rod (34) for driving the ring support extension rod (32) to move.

4. The three-dimensional multi-layered folding and extending ecological fish nest facility according to claim 1, characterized in that, The fish nest separating ring plate (21) is provided with a longitudinal communication mechanism (40), the longitudinal communication mechanism (40) includes a longitudinal communication groove (41) opened on the top of the fish nest separating ring plate (21) and extending radially along the fish nest separating ring plate (21), and a longitudinal communication control plate (42) is slidably fitted in the longitudinal communication groove (41). The longitudinal connecting groove (41) is provided with a longitudinal connecting opening (401) that runs through the vertical direction. The longitudinal communication control plate (42) is provided with a plurality of longitudinal water flow mating holes (420) that run through the vertical direction, and the longitudinal communication groove (41) is provided with a plurality of longitudinal water flow holes (402) that run through the vertical direction. The longitudinal communication groove (41) has a longitudinal communication drive connection hole (43) extending radially along the fish nest partition ring plate (21) on its inner side wall. A control board drive push rod (431) is slidably connected in the longitudinal communication drive connection hole (43). One end of the control board drive push rod (431) outside the longitudinal communication drive connection hole (43) is fixedly connected to the longitudinal communication control plate (42). The longitudinal connecting drive connection hole (43) is provided with a control board sliding drive rod (44) for driving the control board drive push rod (431) to move.

5. A three-dimensional, multi-layered, foldable, extendable ecological fish nest facility according to claim 1, characterized in that, An opening and closing mechanism (50) is provided at the fish nest inlet / outlet hole (230). The opening and closing mechanism (50) includes an opening and closing support ring (51) fixed in the fish nest inlet / outlet hole (230). The opening and closing support ring (51) has multiple rotating shaft connecting holes (511) that are parallel to its axis and pass through it on its side. An opening and closing control rotating shaft (512) is rotatably connected in the rotating shaft connecting hole (511). An opening and closing control fan plate (52) is fixed on the opening and closing control rotating shaft (512). The opening and closing control shaft (512) is fixed with a synchronous opening and closing gear (531) at one end away from the opening and closing control fan plate (52). The outer side of the opening and closing support ring (51) is rotatably connected with a synchronous opening and closing drive ring (53) coaxial with it. The inner side of the synchronous opening and closing drive ring (53) is fixed with a synchronous opening and closing gear ring (532) coaxial with it. The synchronous opening and closing gear (531) and the synchronous opening and closing gear ring (532) are meshed and connected.

6. A three-dimensional multi-layered foldable and extendable ecological fish nest facility according to claim 5, characterized in that, The inner side of the synchronous opening and closing drive ring (53) is provided with a drive connection ring groove (541) coaxial with it. The outer side of the opening and closing support ring (51) is provided with a motor mounting hole (542) extending radially and communicating with the drive connection ring groove (541). A synchronous drive motor (543) is fixed in the motor mounting hole (542). A synchronous drive gear (544) is fixed on the output shaft of the synchronous drive motor (543). A synchronous drive gear ring (545) is fixed in the drive connection ring groove (541). The synchronous drive gear (544) and the synchronous drive gear ring (545) are meshed and connected.

7. A three-dimensional, multi-layered, foldable, extendable ecological fish nest facility according to claim 1, characterized in that, The lower end of the main support column (11) is provided with an anchoring counterweight mechanism (14). The anchoring counterweight mechanism (14) includes a counterweight box (141) fixed at the lower end of the main support column (11). The interior of the main support column (11) is hollow. The interior of the main support column (11) is connected to the interior of the counterweight box (141). A guide cone (142) with its tip pointing upward is fixed at the bottom of the counterweight box (141). The top of the main support column (11) is threaded with a counterweight-filled sealing end cap (143).

8. A three-dimensional multi-layered foldable extended ecological fish nest facility according to claim 1, characterized in that, The uppermost segmented support ring (12) is provided with a buoyancy deployment mechanism (15). The buoyancy deployment mechanism (15) includes multiple buoyancy tension connecting rods (151) fixed on the upper side of the segmented support ring (12). A buoyancy constraint ring (152) with a vertically extending axis is fixed at the upper end of the buoyancy tension connecting rod (151). A hollow buoyancy canister (153) is fixed in the buoyancy constraint ring (152).

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