A marine farming apparatus

Abstract

The application discloses a kind of mariculture equipment, it is related to mariculture equipment technical field, including net cage being connected in inner floating ring, the net cage end is connected with counterweight ring, the counterweight ring is connected with inner floating ring by connecting rope, the inner floating ring is connected with guard ring, further include: with the outer floating ring being connected with the inner floating ring;Multiple V-shaped support assemblies are rotatably connected on the outer floating ring respectively;Anti-overflow net;The application is in initial state, V-shaped support assembly is opened to make anti-overflow net form open protective net, guarantee fish activity space and natural flow guide;Wave absorbing plate is inclined to immerse, and small wave is shunted by wave absorbing hole, and it also forms surface water flow circulation to optimize water quality, side pull rope and connecting rope form triangular area reinforcing net cage, extend the life of net cage.When wind wave, float ball linkage pull rope one, pull rope two make V-shaped support assembly rotate, anti-overflow net is folded and net cage volume is reduced, reduce fish escape rate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of marine aquaculture equipment, and in particular relates to a marine aquaculture equipment. BACKGROUND

[0002] In the field of aquaculture, cylindrical net cages have become one of the mainstream devices for fish farming in shallow waters (water depth 5-15 meters) due to their stable structure, high space utilization rate, and good water exchange, and are widely used in the farming of economic fish in coastal, gulf, and lake waters. The core structure of the cylindrical net cage usually includes a cylindrical fishing net, a top open end (which is 1-1.5 meters higher than the sea level to ensure fish activity and water exchange), a bottom counterweight (to maintain the verticality of the net body), and an underwater anchoring system (fixed by anchor chains to prevent the net cage from drifting).

[0003] However, in practical applications, the existing cylindrical net cages face the following technical pain points due to the special environment of shallow waters, such as frequent wind and waves, strong water flow, and the limitations of their own structure. The top open end of the existing cylindrical net cage is higher than the sea level, but in strong wind and wave weather, the net cage will be subjected to strong impact from the waves, causing it to shake or tilt violently, resulting in a significant rise in the water level inside the cage, which can lead to fish escaping and economic losses.

[0004] In the prior art, a patent with the publication number CN115735831B discloses an anti-wind and wave marine ranching device, which includes eight fences that form a ring-shaped enclosure, a water baffle for preventing waves, a shielding device for shielding wind and waves, a sliding device for moving the shielding device, and a floating ball for sensing wind and waves. The eight fences are provided with water baffles between them, the upper end of the fence is provided with a shielding device, the sliding device is arranged between the inside of the fence and the shielding device, and the outer wall of the eight fences is fixedly connected with the floating ball through a line. When a wave approaches, the floating ball is driven to impact forward, causing a pulling force on the outside of the floating ball, which in turn drives the sliding device to move the other layer of fence upwards. The fences attract each other to form a conical shielding plate, which effectively shields the impact of wind and waves from above.

[0005] Although the above-mentioned patent can move another layer of fence upwards and form a conical shielding plate to shield the impact of wind and waves from above, the protection effect for the fish in the net cage is still not satisfactory. In order to further improve the protection of the fish in the net cage in strong wind and wave weather, a marine aquaculture equipment is proposed. SUMMARY

[0006] The technical problem solved by the present application is to overcome the deficiencies of the prior art and provide a marine culture equipment that can overcome the above problems or at least partially solve the above problems.

[0007] To solve the above technical problems, the basic idea of the technical solution of the present application is: a marine culture equipment, comprising a net cage connected in an inner floating ring, a counterweight ring connected at the end of the net cage, the counterweight ring being connected with the inner floating ring through a connecting rope, and a guard ring connected to the inner floating ring, further comprising: an outer floating ring connected with the inner floating ring; a plurality of V-shaped support assemblies respectively rotatably connected to the outer floating ring; a spill-proof net, both ends of which are respectively connected with adjacent V-shaped support assemblies to form a polygonal open protective net at the outer edge of the net cage; a plurality of pull ropes I, one end of each of which is connected with a plurality of V-shaped support assemblies, and the other end of each of the pull ropes I converges towards the center of the net cage; a pull rope II, one end of which is located at the center of the net cage and connected with the plurality of pull ropes I, and the other end of which penetrates to the lower end of the net cage and is connected with a floating ball, when the floating ball is impacted by wind and waves, the floating ball rotates the V-shaped support assemblies through the pull rope II and the pull rope I to make the spill-proof net open and close towards the upper end of the net cage, forming an eight-shaped cross-section protective cover.

[0008] Preferably, the V-shaped support assembly comprises a sleeve ring, a first arm rod and a second arm rod fixedly connected to the sleeve ring, the included angle between the first arm rod and the second arm rod is 50°-105°, and the first arm rod is close to the guard ring.

[0009] Preferably, both ends of the spill-proof net are connected to the connecting rope plate of the first arm rod, fixed rods are respectively fixedly connected to both sides of the middle part of the spill-proof net, the fixed rods are connected with the first arm rod through first elastic pull ropes, second elastic pull ropes are fixedly connected to the lower edge of the spill-proof net, both ends of each of the second elastic pull ropes are fixedly connected with adjacent first arm rods, and the lower edge of the spill-proof net is lower than the height of the guard ring.

[0010] Preferably, a plurality of the second arm rods are each provided with a wave absorbing plate, a plurality of wave absorbing holes are formed in the wave absorbing plate; in the initial state, the wave absorbing plate is inclined towards the water; when the spill-proof net forms a protective cover, the wave absorbing plate is away from the water surface, a plurality of the wave absorbing plates are adjacent to each other and form a circumferential type protective baffle.

[0011] Further, the second arm rod and the bottom of the net cage are connected through a side pull rope, when the spill-proof net closes towards the upper end of the net cage, the side pull rope pulls upwards to reduce the volume of the net cage; in the initial state, the side pull rope and the connecting rope form a triangular area.

[0012] Preferably, a connecting rod is fixedly connected to the counterweight ring, a limiting ring is fixedly connected to the connecting rod, the limiting ring is concentric with the counterweight ring, and the pull rope II penetrates through the limiting ring.

[0013] Further, the connecting rod is provided with a net preventing screen, and the floating ball is located below the net preventing screen.

[0014] Preferably, when the anti-overflow net forms a protective cover at the upper end of the net cage, the pull rope forms a limiting area in the net cage.

[0015] Further, the outer floating ring and the inner floating ring are connected through a connecting piece, and a supporting bottom plate is arranged on the connecting piece.

[0016] After the above technical scheme is adopted, the present application has the following beneficial effects compared with the prior art:

[0017] 1. In the initial state, the V-shaped support assembly is in an open state, and the anti-overflow net is unfolded to form a "polygonal open protective net", which not only guarantees the open space at the upper end of the net cage, but also realizes natural flow guiding through the included angle between the anti-overflow net and the water surface. In addition, when the wave absorbing plate is inclined and immersed in water, the wave absorbing holes of the wave absorbing plate split the small waves, and part of the water flow "slides into" the upper layer of the net cage along the inclined surface of the wave absorbing plate, forming a gentle surface water flow circulation, continuously supplementing dissolved oxygen and carrying away residual feed and feces, and optimizing the water quality environment.

[0018] 2. In the initial state, the side pull rope and the connecting rope form a triangular area, which uses the mechanical stability of the triangle to reinforce the upright shape of the net cage and avoid excessive deformation or tilting of the net cage caused by small waves. At the same time, when the wave absorbing plate is inclined and immersed, it can weaken the direct impact of small waves on the net cage, reduce the fatigue damage of the net cage caused by repeated stretching, prolong the service life of the net cage, and further improve the protection of the fish in the net cage.

[0019] 3. When the wind and waves come, the floating ball is impacted to drive the V-shaped support assembly to rotate through the pull rope linkage, the anti-overflow net is drawn to the center of the net cage to form a "cross-section eight-shaped protective cover", the opening at the upper end of the net cage is reduced, and at the same time, the side pull rope lifts the second arm rod to pull the bottom of the net cage upward, reducing the volume of the net cage, reducing the probability of fish gathering at the opening due to water flow, and reducing the risk of fish unintentionally hitting the net and jumping to escape by "compressing the active space", further improving the protection of the fish in the net cage.

[0020] 4. In the wind and wave state, the second arm rod is separated from the water surface with the rotation of the support, and the edges of the adjacent wave absorbing plates are drawn together to form a circumferential protective baffle, avoiding the direct impact of strong waves on the anti-overflow net, improving the protection of the anti-overflow net, and also indirectly improving the protection of the fish in the net cage. At the same time, the wave absorbing plate can "break" the strong waves outside the anti-overflow net in advance, weaken the energy of the subsequent waves, and reduce the problems of the net cage and the anti-overflow net caused by the impact of strong waves, such as tilting and anchor chain overload, thereby improving the protection of the fish.

[0021] 5. The mariculture equipment, the pull rope two penetrates the limiting ring, ensures that the pull rope force direction is stable in the pulling process, avoids the jam or fracture caused by the uneven force of the V-shaped support assembly; the float ball generates a sustained pulling force on the pull rope two after being impacted, cooperates with the contraction force of the first elastic pull rope and the second elastic pull rope, can fix the position of the V-shaped support assembly, and avoids accidental resetting of the V-shaped support assembly during the intermittent period of wind and waves.

[0022] 6. The mariculture equipment, after the wind and waves weaken, manual can reset the simple operation auxiliary equipment through pulling the first arm rod, the connecting point of the pull rope one and the pull rope two, cooperates with the feeding inspection frequency of once a day, can complete the resetting work synchronously, and does not occupy the breeding time additionally.

[0023] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] In the drawings:

[0025] Figure 1 It is a three-dimensional structure schematic diagram of a mariculture equipment proposed by the present application;

[0026] Figure 2 It is a structure schematic diagram of an inner floating ring, an outer floating ring and a guard ring of a mariculture equipment proposed by the present application;

[0027] Figure 3 It is a top view of a mariculture equipment proposed by the present application;

[0028] Figure 4 It is a schematic diagram of the open mouth of the anti-overflow net;

[0029] Figure 5 It is a structure schematic diagram of a connecting rod, a limiting ring and an anti-overflow net of a mariculture equipment proposed by the present application;

[0030] Figure 6 It is a structure schematic diagram of a wave absorbing plate and a net cage of a mariculture equipment proposed by the present application;

[0031] Figure 7 It is a structure schematic diagram of an anti-overflow net, a pull rope one and a pull rope two of a mariculture equipment proposed by the present application;

[0032] Figure 8 It is a structure schematic diagram of a side pull rope and a triangular area of a mariculture equipment proposed by the present application;

[0033] Figure 9 It is a schematic diagram of the folding of the anti-overflow net and the rising of the net cage;

[0034] Figure 10 It is a structure schematic diagram of a sleeve ring, a first arm rod and a second arm rod of a mariculture equipment proposed by the present application;

[0035] Figure 11 This is a schematic diagram of the structure of a wave-damping plate for a marine aquaculture device proposed in this invention;

[0036] Figure 12 This is a schematic diagram of the structure of the first elastic rope, the second elastic rope, and the fixing rod of a marine aquaculture equipment proposed in this invention.

[0037] Figure 13 This is a schematic diagram of the connecting disc and connecting hook of a marine aquaculture equipment proposed in this invention;

[0038] Figure 14 This is a schematic diagram showing the first arm and the second arm at a 50° angle, with the V-shaped support assembly in a retracted state.

[0039] Figure 15 This is a schematic diagram showing the first arm and the second arm with an included angle of 60°, and the V-shaped support assembly in a retracted state;

[0040] Figure 16 This is a schematic diagram showing the first arm and the second arm at a 90° angle, with the V-shaped support assembly in a retracted state.

[0041] Figure 17 This is a schematic diagram showing the first arm and the second arm with an angle of 105°, and the V-shaped support assembly in a retracted state.

[0042] In the diagram: 1. Inner floating ring; 11. Outer floating ring; 12. Connector; 13. Protective ring; 14. Connecting post; 15. Connecting rope; 16. Counterweight ring; 17. Connecting rod; 171. Limiting ring; 172. Anti-collision net; 18. Net cage;

[0043] 2. Ring; 20. Wave damper; 21. First boom; 22. Connecting rope plate; 23. Second boom; 24. Overflow net; 25. Fixing rod; 26. First elastic pull rope; 27. Second elastic pull rope;

[0044] 3. Pull rope one; 31. Pull rope two; 32. Float; 33. Connecting disc; 34. Connecting hook;

[0045] 4. Side pull rope; 41. Triangle area; 5. Restricted area. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] The following is in conjunction with the appendix Figure 1 -Appendix Figure 17The technical solutions provided by the embodiments of the present application are described in detail.

[0048] The marine aquaculture equipment disclosed in the embodiment takes the "dynamically adjustable anti-overflow and anti-wave function" as the core, is suitable for the fish aquaculture scene in shallow water, and has the overall structure as follows:

[0049] The floating module is used to provide buoyancy support for the aquaculture equipment, and the reference is made to Figure 2 The outer floating ring 11 and the inner floating ring 1 are concentric annular structures, the material is preferably high-density polyethylene, a closed-cell foam core is arranged inside, the buoyancy is durable and resistant to seawater corrosion, and the two are fixedly connected through at least 12 connecting pieces 12 (the connecting pieces 12 are preferably high-strength plastic, and 12 connecting pieces 12 are preferred in the embodiment), and a support bottom plate is arranged on the upper surface of the connecting piece 12 to provide a standing and walking area (connected to the connecting piece 12, the outer floating ring 11 and the inner floating ring 1 through bolts or ropes).

[0050] The guard ring 13 is fixedly connected to the upper surface of the inner floating ring 1 through the connecting column 14, is annular, and has the effects of blocking floating debris (such as branches and plastic) on the water surface from entering the net cage 18 and providing protection for the artificial person.

[0051] The net cage main module is used to realize fish aquaculture space bearing, and the reference is made to Figure 1 、 Figure 4 、 Figure 5 、 Figure 7 The net cage 18 adopts a common marine aquaculture special fishing net, the mesh size is designed according to the size of the farmed fish, the upper end edge of the net cage 18 is fixedly connected to the guard ring 13, the lower end edge is connected to the counterweight ring 16 through a rope, the counterweight ring 16 is connected to the inner floating ring 1 and the outer floating ring 11 through a plurality of connecting ropes 15, and the net cage 18 is kept upright after being put into water, so that the inclination and skew caused by uneven buoyancy are avoided.

[0052] The anti-overflow and anti-wave module is used to avoid a large amount of fish in the net cage 18 from overflowing and resist and reduce the impact of sea waves when the net cage 18 repeatedly inclines and skews with waves in large wind and wave weather, and the reference is made to Figures 1-17 At least six groups of V-shaped support assemblies are provided (the specific number is determined according to the diameter of the outer floating ring 11, but at least the span between two V-shaped support assemblies is not too large), each group of V-shaped support assemblies includes a sleeve ring 2, a first arm rod 21 and a second arm rod 23, the sleeve ring 2 is sleeved on the outer floating ring 11 and can freely rotate thereon, so that the rotation function of the V-shaped support assembly is realized; the first arm rod 21 and the second arm rod 23 are fixedly connected to the sleeve ring 2, and the included angle between the two is 50°-105°, and in the embodiment, the included angle is preferably 60° (for reference Figure 15 ), wherein the first arm rod 21 is adjacent to the guard ring 13 compared with the second arm rod 23.

[0053] Referring to Figure 15 When the included angle between the two is 60°, the first arm rod 21 is turned over and abuts against the retainer 13, at this time the second arm rod 23 is close to vertical to the water surface, in this state, the wave dissipation ability and the utilization of the circumferential protective baffle formed by the plurality of wave dissipation plates 20 to the upper space of the net cage 18 are considered, which is suitable for medium-high intensity wind waves;

[0054] In one embodiment, referring to Figure 14 When the included angle between the two is 50°, the first arm rod 21 is turned over and abuts against the retainer 13, at this time the second arm rod 23 is close to vertical to the water surface, in this state, the wave dissipation plate 20 has the strongest blocking and reducing effect on strong waves, which is suitable for extreme strong wind waves, and can greatly reduce the impact of waves on the opening of the net cage 18;

[0055] In one embodiment, referring to Figure 16 When the included angle between the two is 90°, the first arm rod 21 is turned over and abuts against the retainer 13, at this time the included angle between the second arm rod 23 and the water surface is smaller than the included angle between the second arm rod 23 and the water surface when the included angle between the two is 50° or 60°, in this state, the wave dissipation force is weakened, which is more suitable for medium-low intensity wind waves, but at the same time, the circumferential protective baffle formed by the plurality of wave dissipation plates 20 can increase the contact area with the water, so that the overall floating performance of the device is better when the surge is impacted, further reducing the probability of being submerged by the sea waves, thereby effectively preventing the fish in the net cage 18 from escaping;

[0056] In one embodiment, referring to Figure 17 When the included angle between the two is 105°, the first arm rod 21 is turned over and abuts against the retainer 13, at this time the included angle between the second arm rod 23 and the water surface is smaller than the included angle between the second arm rod 23 and the water surface when the included angle between the two is 50°, 60° or 90°, in this state, the wave dissipation plate 20 has weaker wave dissipation ability than the wave dissipation plate 20 when the included angle between the two is 50°, 60° or 90°, but the net cage 18 has higher openness, and after the spillway net 24 is retracted, the openness of the upper end opening of the net cage 18 can be maintained.

[0057] The anti-overflow net 24 can be made of nylon net, and the mesh size is designed according to the size of the cultured fish. In this embodiment, the mesh size of the anti-overflow net 24 is preferably smaller than that of the net cage 18 (to improve the anti-overflow effect and avoid the mesh size of the anti-overflow net 24 being enlarged during the anti-overflow process, which may cause the fish to escape). The two ends of the anti-overflow net 24 are connected to the rope connecting plate 22 on the first arm rod 21 through ropes, bolts, buckles or other tools. The rope connecting plate 22 is welded on both sides of the first arm rod 21, and the rope connecting plate 22 is provided with mounting holes for connecting the anti-overflow net 24 and the rope connecting plate 22. The anti-overflow net 24 is connected to the rope connecting plate 22 through six groups of V-shaped support assemblies to form a polygonal open protective net. The anti-overflow net 24 is fixedly connected to the fixed rods 25 on both sides of the middle part. The fixed rods 25 are connected to the first arm rod 21 through the first elastic pull rope 26 (a chloroprene rubber rope with a polyester core). When the anti-overflow net 24 forms a polygonal open protective net, the first elastic pull rope 26 is in a stretched state and supports the anti-overflow net 24. The lower edge of the anti-overflow net 24 is fixedly connected to the second elastic pull rope 27 (which is made of the same material as the first elastic pull rope 26 and is also in a stretched state when the anti-overflow net 24 forms a polygonal open protective net. At this time, the anti-overflow net 24 is in an unfolded state). The two ends of the second elastic pull rope 27 are fixed to the adjacent first arm rods 21, and the lower edge of the anti-overflow net 24 is lower than the height of the guard ring 13 (the difference is 10-15 cm), forming a double protection of the lower guard ring 13 and the upper anti-fish jumping.

[0058] The wave absorbing plate 20 is installed on each group of second arm rods 23 through bolts. In the initial state, the wave absorbing plate 20 is inclined and immersed in water, and the angle with the sea surface is 30°. The wave absorbing holes can shunt small waves and reduce water flow impact.

[0059] The linkage control assembly realizes automatic adjustment in wind and wave conditions, and the specific structure is described with reference to Figure 7 、 Figure 8 、 Figure 9 The first pull rope 3 is fixed at one end to the first arm rod 21 near the top end and converges to the center of the net cage 18 at the other end. The second pull rope 31 is connected at one end to all the first pull ropes 3 at the center of the net cage 18 and is threaded at the other end to the lower end of the net cage 18 and then through the counterweight ring 16 and the limiting ring 171 (to ensure that the second pull rope 31 does not deviate and that when the second pull rope 31 is pulled, the second pull rope 31 located in the net cage 18 remains vertical), and finally connected to the floating ball 32. The diameter of the floating ball 32 and the number of rotations are determined according to the number of anti-overflow nets 24. The more the anti-overflow nets 24, the larger the diameter or number of the floating ball 32. It is necessary to ensure that the impact force received by the floating ball 32 in windy and wavy weather can overcome the tension of the first elastic pull rope 26 and the second elastic pull rope 27 on the V-shaped support assembly, so that the impact force of the floating ball 32 in the wind and waves can pull the V-shaped support assembly to rotate on the outer floating ring 11.

[0060] The connecting rods 17 are fixedly connected at one end to the counterweight ring 16, at least three connecting rods 17 are provided and uniformly distributed on the counterweight ring 16, the other end of the connecting rod 17 extends to the center of the counterweight ring 16, the limiting ring 171 is fixed at the center of the connecting rod 17 on the counterweight ring 16, so that the limiting ring 171 is concentric with the counterweight ring 16; The anti-net 172 is provided on the connecting rod 17, and the floating ball 32 is located below the anti-net 172, so that the floating ball 32 transmits the buoyancy to the anti-net 172 in the initial state, thereby avoiding the floating ball 32 directly contacting the bottom of the net cage 18, causing the bottom of the net cage 18 to be upwardly convex, and affecting the fish farming in the net cage 18.

[0061] In one embodiment, by lengthening the length of the pull rope two 31, the floating ball 32 floats on the water surface in the initial state, which is more convenient for being pushed and pulled by the wind and water flow to rotate the V-shaped support assembly in windy weather.

[0062] In one embodiment, the pull rope one 3 is connected with the connecting hook 34 on the connecting disc 33, and the pull rope two 31 is connected with the connecting hook 34 at the bottom surface of the connecting disc 33, thereby facilitating the connection of the pull rope one 3 and the pull rope two 31; wherein the connecting hook 34 is fixedly connected in a circle on the connecting disc 33, and the connecting hook 34 is provided with a plurality of connecting hooks 34, wherein the bottom surface of the connecting disc 33 is also fixedly connected with the connecting hook 34, for facilitating the connection with the pull rope two 31; the connecting disc 33 is located at the convergence of the plurality of pull rope one 3 in the middle of the net cage 18, for facilitating the connection of the pull rope one 3 and the pull rope two 31.

[0063] In use, in the initial state (no wind or small wind), the V-shaped support assembly is stable on the outer floating ring 11, the plurality of first arm rods 21 are in an open state (at this time, the first arm rod 21 is greater than 90 degrees with the axis of the outer floating ring 11), the anti-overflow net 24 is in an open state, and the first elastic pull rope 26 and the second elastic pull rope 27 are in a stretched state. Because the plurality of V-shaped support assemblies are in an open state, and are pulled by the first elastic pull rope 26 and the second elastic pull rope 27 between adjacent V-shaped support assemblies, the V-shaped support assembly remains stable, and the second arm rod 23 on the V-shaped support assembly is inclined towards the water, so that the wave absorbing plate 20 is immersed in the water, and the wave absorbing holes on the wave absorbing plate 20 can divide the small waves, weaken the impact force of the sea waves on the net cage 18, and avoid fatigue damage of the net cage 18 due to frequent small impacts. At the same time, the anti-overflow net 24 in the open state forms an angle with the water surface, which can also guide the wind, reduce the lateral force of the wind on the net cage 18, and improve the stability of the net cage 18 in daily state.

[0064] And in the anti-overflow net 24 is a polygon open protective net state, that is, can guarantee the open space of the net cage 18 upper end (convenient for fish activity, water exchange), but also through the anti-overflow net 24 to block the fish jump, but also by making the second arm rod 23 is submerged in the water in an inclined state, with the wave suppression plate 20, the small wave impact force into a shunt flow, reduce the stress of the net cage 18 side wall, while the inclined wave suppression plate 20 can also make part of the water flow along the inclined surface of the wave suppression plate 20 "slip into" the upper layer of the net cage 18, forming a "gentle surface water flow circulation".

[0065] And in the wind and wave state, the wind and wave push the underwater flow field movement, the floating ball 32 is impacted by the water flow movement (the net cage 18 will be fixed by anchor hook, rope in use, so the net cage 18 will not be displaced), the floating ball 32 is impacted, pull the pull rope 1 3, pull rope 2 31, pull rope 2 31 under the guidance of the limiting ring 171, the pull rope 1 3 moves to the net cage 18, so the pull rope 1 3 pulls the first arm rod 21 to rotate around the outer floating ring 11, so that the anti-overflow net 24 is folded to the opening of the net cage 18, forming a cross section of the protective cover of the eight character type, reducing the opening of the net cage 18 upper end, and further reducing the fish in the wind and wave weather, due to the water flow surge and lead to escape.

[0066] Among them, when the first arm rod 21 is turned to close the net cage 18, the first elastic pull rope 26, the second elastic pull rope 27 is contracted, through the fixed rod 25 and the connection of the anti-overflow net 24, so that when the anti-overflow net 24 is close to the center of the net cage 18, it is automatically contracted to the loose anti-overflow net 24, to ensure that the adjacent V type support assembly is in traction state, because the first elastic pull rope 26, the fixed rod 25 is set in the back of the anti-overflow net 24, so it can also support the anti-overflow net 24.

[0067] The above need to understand that, when the first arm rod 21 is open, the spacing between the two adjacent first arm rods 21 is greater than the spacing between the two first arm rods 21 after the first arm rod 21 is folded, so when the first arm rod 21 is open, the anti-overflow net 24 is in the state of stretching, and when the first arm rod 21 is folded, the spacing between them is reduced, and the anti-overflow net 24 is in a relaxed state. Therefore, by setting the first elastic pull rope 26, the second elastic pull rope 27 and the fixed rod 25, the anti-overflow net 24 after the first arm rod 21 is folded is automatically tightened and supported, avoiding excessive relaxation, and under the tension of the first elastic pull rope 26 and the second elastic pull rope 27, the adjacent V type supports are stable, avoiding accidental turning back.

[0068] Among them, when the first arm rod 21 is folded, the second arm rod 23 will move with the first arm rod 21 to change the position, that is, when the pull rope 1 3 is pulled by the pull rope 2 31, the rotation of the sleeve ring 2 will make the first arm rod 21 and the second arm rod 23 change the position together. At this time, the second arm rod 23 is separated from the water (refer to Figure 15), the angle between the second arm lever 23 and the water surface is close to 90 degrees, at this time, the adjacent wave-eliminating plates 20 are close to each other, and a circumferential protection baffle structure is formed outside the anti-overflow net 24 to "crush" the part of the waves directly rushing into the net cage 18, further weakening the impact of the subsequent waves on the net cage 18;

[0069] Further, by increasing the number of V-shaped support assemblies, the distance between adjacent V-shaped support assemblies is reduced, thereby reducing the length of the single wave-eliminating plate 20, so that the edges of the wave-eliminating plates 20 on the second arm lever 23 can be closer to or in contact with the edges of the adjacent wave-eliminating plates 20 after the V-shaped support assembly is rotated, and the length of the wave-eliminating plate 20 can be set according to the distance between adjacent V-shaped support assemblies, which can reduce the resistance of the second arm lever 23 when it is lifted and form a complete circumferential protection baffle structure, further avoiding the impact of waves on the net cage 18.

[0070] In one embodiment, referring to Figure 4 、 Figure 9 One end of the side pull rope 4 is fixed to the end of the second arm lever 23 of the V-shaped support assembly, and the other end is connected to the weight ring 16 at the bottom of the net cage 18; in the initial state, the side pull rope 4 and the connecting rope 15 are in a "triangular distribution", forming a stable triangular area 41, which further reinforces the upright shape of the net cage 18 through the mechanical stability of the triangle, avoiding excessive deformation of the side wall of the net cage 18 under small waves;

[0071] When the V-shaped support assembly is pulled to rotate, the second arm lever 23 on the V-shaped support assembly is lifted upward, and in the lifting process, the net cage 18 is pulled upward by the side pull rope 4, thereby reducing the volume of the net cage 18, which can reduce the stress load on the net cage 18 and compress the fish activity space, thereby reducing the escape probability;

[0072] Among them, the impact on the net cage 18 in the waves mainly comes from the direct beating force of the sea waves on the net cage 18 and the drag force generated when the water flow passes through the net cage 18, so that when the volume of the net cage 18 is reduced, these stress loads will be significantly reduced, thereby improving the overall wind and wave resistance of the net cage 18;

[0073] Secondly, when the waves become larger, the fish is prone to stress reaction, so by reducing the volume of the net cage 18, the fish activity range can be reduced, the fish unintentionally hitting the net cage 18 can be reduced, and the water flow can be reduced. The entangling force of the fish school reduces the stress escape.

[0074] It should be noted that after the second pulling rope 31 is stretched, the floating ball 32 is separated from the bottom area of the net cage 18, and the floating ball 32 will float to the water surface. At this time, the second pulling rope 31 has a lifting effect on the counterweight ring 16. In this state, the accidental resetting of the V-shaped support assembly can be avoided, and the pulling of the V-shaped support assembly under the contraction state of the first elastic pulling rope 26 and the second elastic pulling rope 27 further stabilizes the anti-overflow net 24 of the eight-shaped protective cover.

[0075] When the wind and wave decrease or disappear, manual feeding or inspection of the net cage 18 can assist in resetting the V-shaped support assembly. The assistance includes but is not limited to: using the pulling rope on the ship to hook the first arm rod 21 and pull, or pulling the connection between the first pulling rope 3 and the second pulling rope 31 to pull the floating ball 32 back under the net cage 18, thereby reducing the pulling force of the first pulling rope 3 and the second pulling rope 31 on the V-shaped support assembly, and assisting the V-shaped support assembly to reset. It should be understood that the manual feeding and inspection frequency is once a day, and the accidentally closed V-shaped support assembly can be reset.

[0076] In one embodiment, referring to Figure 8 , the side pulling rope 4 is connected to the connecting rope 15 near the counterweight ring 16 away from the second arm rod 23. In this state, the side pulling rope 4 forms a pulling force on the side pulling rope 4 through the gravity of the counterweight ring 16 downward, forming a stable triangular area 41. Through the mechanical stability of the triangle, the upright shape of the net cage 18 is further strengthened, and excessive deformation of the net cage 18 under small waves is avoided.

[0077] In one embodiment, referring to Figure 9 , under the condition of wind and wave, the first pulling rope 3 is pulled to form a conical limiting area 5 in the net cage 18, and the vertex of the cone is downward.

[0078] According to the weather forecast, a limiting net can be set on the plurality of first pulling ropes 3 in advance. When the first pulling rope 3 is pulled, the plurality of first pulling ropes 3 move towards the net cage 18, and through the limiting net, a limiting area 5 is formed in the net cage 18, further avoiding the escape of fish in the net cage 18.

[0079] In one embodiment, a limiting net can be provided on the plurality of first pulling ropes 3 to further enhance the protection of the fish in the net cage 18 when the anti-overflow net 24 is folded for protection under the condition of wind and wave.

[0080] In an alternative embodiment, the floating ball 32 driving the V-shaped support assembly to rotate is replaced by a motor module; a mounting bracket is provided on the outer floating ring 11, a waterproof cabin is installed on the mounting bracket, a waterproof servo motor and a control module system are installed in the waterproof cabin, a speed reduction gear set is installed on the output end of the waterproof servo motor, and a winding rope cylinder is installed on the output end of the speed reduction gear set to reduce the rotating speed and increase the torque.

[0081] One end of the second pull rope 31 is extended from the bottom of the net cage 18 to the waterproof cabin and is wound into the waterproof cabin to be connected to the winding drum;

[0082] The control module system comprises a wave sensor installed on the waterproof cabin and a 4G / Beidou module for monitoring the intensity of sea waves, and the 4G / Beidou module is used to receive remote control instructions.

[0083] The power supply module system comprises a solar panel, a storage battery (waterproof packaging), and a backup power supply interface: an external generator can be connected for emergency power supply (the power supply interface is waterproof).

[0084] The overload shutdown module system comprises an overload protector, when the first arm rod 21 of the V-shaped support assembly abuts against the guard ring 13, and the pulling force of the waterproof servo motor on the second pull rope 31 exceeds a preset value, the motor is stopped.

[0085] Therefore, the device can realize automatic regulation or remote control operation, so that the device is more suitable for different needs when used.

[0086] The V-shaped support assembly-overflow prevention net 24-wave elimination plate 20 linkage structure realizes scene switching, in the initial state, the V-shaped support assembly is open, the overflow prevention net 24 guides the flow, and the wave elimination plate 20 is inclined to divide small waves, and fish activity and water quality optimization are considered; when the wind wave occurs, the V-shaped support assembly rotates to drive the overflow prevention net 24 to fold into an eight-shaped protective cover, and the wave elimination plate 20 forms a circumferential protective baffle, so that the volume of the net cage 18 is reduced, three active protections of overflow prevention, wave resistance and fish protection are formed, the pain point that the traditional net cage 18 cannot consider daily and emergency functions is solved, and the protection of the farmed fish is improved.

[0087] By the linkage of the triangular stability and the first pull rope 3 and the second pull rope 31, the structural synergy is strengthened, the side pull rope 4 and the connecting rope 15 form a triangular area 41 to reinforce the verticality of the net cage 18, the second pull rope 31 passes through the limiting ring 171 to ensure the stability of the V-shaped support assembly, and the first elastic pull rope 26 and the second elastic pull rope 27 fix the position of the V-shaped support assembly, so that the structure is not jammed, reset or damaged due to overload, the protection effect and the structural stability are improved, the deformation of the net cage 18 and the escape risk of the fish under strong waves are reduced, and the protection of the fish is further improved.

[0088] The operation logic is simplified, the automation and practicability are balanced, the protection is automatically triggered by the impact of the floating ball 32 in the wind wave, and no power is needed; after the wind wave, the fish can be reset manually in combination with daily feeding inspection, without additional time consumption, so that the inefficiency of pure manual protection is avoided, and the actual operation demand of shallow water aquaculture is adapted.

[0089] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with the preferred embodiments as above, it is not intended to limit the present application, and any skilled person in the art can make some changes or modifications to the above-mentioned technical content with the prompt as equivalent embodiments of equivalent changes without departing from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, which does not depart from the technical solution of the present application, still belongs to the scope of the present application.

Claims

1. A marine aquaculture device, comprising a net cage (18) connected to an inner floating ring (1), wherein a counterweight ring (16) is connected to the end of the net cage (18), the counterweight ring (16) is connected to the inner floating ring (1) via a connecting rope (15), and a protective ring (13) is connected to the inner floating ring (1) via a connecting post (14), characterized in that, Also include: The outer floating ring (11) connected with the inner floating ring (1); A plurality of V-shaped support assembly is respectively rotatably connected on the outer floating ring (11); The overflow net (24) is connected with the adjacent V-shaped support assembly respectively at both ends, and is used for forming a polygonal open protective net at the outer edge of the net cage (18); A plurality of pull ropes (3) are connected with the V-shaped support assembly respectively at one end, and the other end of the pull rope (3) is gathered towards the center of the net cage (18); The pull rope two (31) is connected with the plurality of pull ropes (3) at one end, and the other end of the pull rope two (31) penetrates to the lower end of the net cage (18) and is connected with the float ball (32), When the wind and wave impact the float ball (32), the float ball (32) is pulled by the pull rope two (31) and the pull rope one (3) to rotate the V-shaped support assembly, so that the overflow net (24) is close to the opening of the net cage (18) at the upper end, and the protective cover with an eight-shaped cross section is formed; The V-shaped support assembly comprises a sleeve ring (2), a first arm rod (21) and a second arm rod (23) fixedly connected to the sleeve ring (2), the included angle between the first arm rod (21) and the second arm rod (23) is 50°-105°, and the first arm rod (21) is close to the guard ring (13); Both ends of the overflow net (24) are connected to the rope connecting plate (22) of the first arm rod (21), both sides of the middle part of the overflow net (24) are fixedly connected with the fixed rod (25), the fixed rod (25) and the first arm rod (21) are connected through the first elastic pull rope (26), the lower edge of the overflow net (24) is fixedly connected with the second elastic pull rope (27), both ends of the second elastic pull rope (27) are fixedly connected with the adjacent first arm rod (21), and the lower edge of the overflow net (24) is lower than the height of the guard ring (13); A plurality of the second arm rods (23) are provided with wave absorbing plates (20), and a plurality of wave absorbing holes are formed in the wave absorbing plates (20); in the initial state, the wave absorbing plates (20) are inclined towards the water; when the overflow net (24) forms the protective cover, the wave absorbing plates (20) are away from the water surface, so that the plurality of wave absorbing plates (20) are adjacent to each other and form a circumferential type protective baffle; The second arm rod (23) and the bottom of the net cage (18) are connected through the side pull rope (4), when the overflow net (24) is close to the upper end of the net cage (18), the side pull rope (4) is pulled upwards to reduce the volume of the net cage (18); in the initial state, the side pull rope (4) and the connecting rope (15) form a triangular area (41).

2. A marine farming apparatus according to claim 1, c h a r a c t e r i s e d in that The counterweight ring (16) is fixedly connected with a connecting rod (17), the connecting rod (17) is fixedly connected with a limiting ring (171), the limiting ring (171) is concentric with the counterweight ring (16), and the pull rope two (31) penetrates the limiting ring (171).

3. A marine farming apparatus according to claim 2, c h a r a c t e r i s e d in that The connecting rod (17) is provided with a resistance net (172), and the float ball (32) is located below the resistance net (172).

4. A marine farming apparatus according to claim 1, c h a r a c t e r i s e d in that When the anti-overflow net (24) forms a protective cover on the upper end of the net cage (18), the pull rope (3) forms a limiting area (5) in the net cage (18).

5. An offshore farming installation according to claim 1, c h a r a c t e r i s e d in that The outer floating ring (11) and the inner floating ring (1) are connected through the connecting piece (12), and a supporting bottom plate is arranged on the connecting piece (12).

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