A deep-water net cage capable of quickly replacing nets

Abstract

The invention discloses a deep-water net cage with a net that can be quickly replaced, comprising a net cage frame, a mounting assembly, a net assembly and a reeling device. The net cage frame forms an internal breeding space, and a bottom net is fixedly arranged at the bottom of the net cage frame; a plurality of mounting assemblies are closely arranged on the net cage frame along the outer edge of the internal breeding space; at least two pairs of sliding brackets are arranged on each set of mounting assemblies, and each pair of sliding brackets is slidably connected to the net assembly; at least one reeling device is arranged at a corresponding position of each set of mounting assemblies, and each reeling device is detachably connected to the net assembly in a corresponding set of mounting assemblies to drive the reeling of the net assembly. The invention can reduce the labor intensity of net replacement and net handling, facilitate net replacement and realize large-scale net cages, thereby solving the problem of existing net replacement.

Description

Technical Field

[0001] The invention relates to the technical field of marine aquaculture, and in particular to a deep-water net cage capable of quickly replacing nets. Background Art

[0002] Marine aquaculture is an important business model and an important source of high-quality protein. In marine aquaculture, the most labor-intensive task is the cleaning of the nets of the aquaculture cages. In the aquaculture of marine products, replacing nets is a very labor-intensive task. In marine aquaculture, the nets of the cages will be attached by shellfish and seaweed in the ocean. The higher the temperature of the seawater, the faster these attachments grow. If they are not removed in time, they will block the mesh, resulting in poor seawater exchange, hypoxia and a series of other problems. Moreover, the nets of farmed fish must be replaced as they grow from small to large. Therefore, no matter what type of marine cage structure, after a period of aquaculture, the net must be replaced and the net must be replaced and cleaned.

[0003] A set of ordinary polyethylene nets with a circumference of 40 meters weighs more than 200 kilograms, and if a nylon net is used, it weighs nearly 300 kilograms. Moreover, the weight of the net increases significantly after absorbing water, which is extremely inconvenient for manual operation at sea. If the circumference of the cage reaches 120 meters, the amount of nets will reach more than five tons. In addition, the weight of the underwater sinker to shape the net makes it extremely difficult to replace the net. This is also an important reason why most of the HDPE (high-density polyethylene) deep-water cages currently used in China are 40 meters or 50 meters in circumference. Only enterprises or companies with certain strength can afford to choose deep-water cages with larger circumferences.

[0004] The volume of the aquaculture cage determines the aquaculture output. The larger the volume, the better the aquaculture environment, the larger the aquaculture output, and the less likely the disease will occur. According to the experience data of the aquaculture industry, the price of a 40-meter circumference aquaculture cage is about 80,000 to 100,000 yuan, and the output can only reach 10 tons. The output of a 120-meter circumference cage is about 800,000 yuan, and the output can reach 500 tons. That is, the price of the cage differs by 10 times, but the aquaculture output differs by 50 times. Taking the current market price as an example, the profit per kilogram of aquaculture products is about 2.5 yuan, so the aquaculture profits of 10-ton and 500-ton aquaculture cages are 50,000 yuan and 2.5 million yuan respectively, and the profitability is very different. From the data, it can be seen that the development of aquaculture equipment towards reasonable large-scale is an inevitable trend! Solving the problem of replacing the nets of aquaculture cages is also a very critical link in the development of aquaculture equipment.

[0005] The U-shaped net cage made of HDPE material needs to adopt multiple anchoring methods to ensure the shape of the generalized net, which makes it more difficult to replace the net, and therefore it is more difficult to make the net cage larger. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a deep-water net cage with which nets can be quickly replaced.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A deep-water net cage with quickly replaceable nets, comprising a net cage frame, a mounting assembly, a net assembly and a winding device, wherein the net cage frame forms an internal breeding space, and a bottom net is fixedly arranged at the bottom of the net cage frame;

[0009] The mounting components are closely arranged in multiple sets on the cage frame along the outer edge of the internal breeding space;

[0010] Each set of the mounting components is provided with at least two pairs of sliding brackets, and each pair of sliding brackets is slidably connected to the net assembly;

[0011] At least one reeling device is provided at a corresponding position of each set of the installation components, and each reeling device is detachably connected to a net assembly in a corresponding set of the installation components to drive the net assembly to be reeled.

[0012] The beneficial effects of the present invention are: a deep-water net cage with quickly replaceable nets, the whole deep-water net cage forms a large internal breeding space after sliding connection through multiple net components and corresponding multiple sets of installation components, and a winding device is used to automatically wind up the net components. Since the net components are made in sheet form, the unit weight of the nets and nets is reduced and the production cost is reduced; at the same time, a single operation is implemented for a single net component, which can reduce the labor intensity of net replacement and net handling, facilitate net replacement and realize large-scale net cages; in addition, when replacing the net, first slide the new net component into the installation component through another pair of sliding brackets, so that the old net component can be rolled up after the new net component is installed, so that the cultured objects in the deep-water net cage will not be affected when the net is replaced, thereby solving the problem of existing net replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the framework of the cage skeleton involved in the embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of the cooperation between the installation assembly and the winding device involved in the embodiment of the present invention;

[0015] Figure 3 It is a schematic structural diagram of two sliding members on the same side involved in an embodiment of the present invention;

[0016] Figure 4 It is a structural schematic diagram of a net clothing component involved in an embodiment of the present invention;

[0017] Figure 5 It is a schematic diagram of the coordination of the installation assembly, the winding device and the bottom clamp involved in the embodiment of the present invention;

[0018] Figure 6 It is a schematic diagram of the matching of the bottom clamp involved in the embodiment of the present invention.

[0019] Description of labels:

[0020] 1. cage frame; 11. internal breeding space; 12. top platform; 121. first fixing member;

[0021] 2. Mounting assembly; 21. Sliding member; 211. First through hole; 212. Sliding opening;

[0022] 3. Net assembly; 31. Net body; 32. Sliding part;

[0023] 4. Winding device; 41. Traction rope; 42. Orienting wheel; 43. First rotating mechanism; 44. Second rotating mechanism; 411. Second fixing member;

[0024] 5. Bottom clamp; 51. Second through hole; 52. Clamping slot. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0026] Please refer to Figures 1 to 6 A deep-water net cage with a quickly replaceable net includes a net cage frame, a mounting assembly, a net assembly and a winding device, wherein the net cage frame forms an internal breeding space, and a bottom net is fixedly arranged at the bottom of the net cage frame;

[0027] The mounting components are closely arranged in multiple sets on the cage frame along the outer edge of the internal breeding space;

[0028] Each set of the mounting components is provided with at least two pairs of sliding brackets, and each pair of sliding brackets is slidably connected to the net assembly;

[0029] At least one reeling device is provided at a corresponding position of each set of the installation components, and each reeling device is detachably connected to a net assembly in a corresponding set of the installation components to drive the net assembly to be reeled.

[0030] Therefore, in this embodiment, the net includes a side net assembly and a bottom net, wherein the side net assembly is replaceable, and the bottom net is fixed on the cage frame and is not replaceable.

[0031] From the above description, it can be seen that the beneficial effect of the present invention is that the entire deep-water net cage forms a large internal breeding space after slidingly connecting multiple net components with corresponding multiple sets of installation components, and the net components are automatically reeled in by a reeling device. Since the net components are made in sheet form, the unit weight of the nets and nets is reduced and the production cost is reduced; at the same time, a single operation is implemented for a single net component, which can reduce the labor intensity of net replacement and net handling, facilitate net replacement and realize large-scale net cages; in addition, when replacing the net, first slide the new net component into the installation component through another pair of sliding brackets, so that the old net component can be retracted after the new net component is installed, so that the cultured objects in the deep-water net cage will not be affected when the net is replaced, thereby solving the problem of existing net replacement.

[0032] Further, each pair of the sliding brackets comprises two sliding members arranged opposite to each other, each of the sliding members is provided with a first through hole and a sliding opening opened on a side facing the other sliding member;

[0033] The net clothing component comprises a net clothing body and sliding parts arranged on both sides of the net clothing body;

[0034] The size of the sliding portion is smaller than the size of the first through hole;

[0035] The width of the sliding opening is smaller than the width of the sliding portion and larger than the thickness of the net.

[0036] It can be seen from the above description that the installation of the net assembly and the sliding bracket is achieved by inserting the sliding parts on both sides of the net body into the sliding member.

[0037] Further, each of the winding devices comprises a traction rope preset in the first through hole and having a diameter greater than the width of the sliding opening, a directional wheel arranged below the sliding bracket, and a first rotating mechanism and a second rotating mechanism arranged on the top platform of the mounting assembly;

[0038] A first fixing member is arranged on the top platform, a second fixing member detachably connected to the first fixing member is arranged at one end of the traction rope, and the other end is detachably connected to the rotating shaft of the first rotating mechanism after passing around the directional wheel;

[0039] One side of the net component is detachably connected to the second rotating mechanism, and a portion of the sliding portion on the other side extending out of the net body is provided with a third fixing piece detachably connected to the second fixing piece.

[0040] From the above description, it can be seen that after the traction rope passes around the directional wheel, a U-shaped structure is formed, one end of which is originally connected to the first fixing part of the top platform and the other end is connected to the rotating shaft of the first rotating mechanism. At this time, the net assembly is wrapped around the second rotating mechanism, and then the third fixing part of the net assembly is connected to the second fixing part of the traction rope. By rotating the first rotating mechanism, the traction rope on one side is driven to move upward. After the directional wheel rotates, the traction rope on the other side drives the net assembly to move downward along the sliding bracket until it slides to the bottom of the net box frame, completing the placement of the net; and when necessary, the net assembly is rolled up to the second rotating mechanism by rotating the second rotating mechanism, and then the second fixing part exposed to the water is connected to the first fixing part and waits for the next placement and rewinding of the net assembly.

[0041] Furthermore, a bottom clamp is provided between the sliding bracket and the directional wheel;

[0042] The bottom clamp is provided with a second through hole for the traction rope to pass through, and a clamping groove recessed toward the direction of the directional wheel is provided on a side close to the sliding bracket.

[0043] From the above description, it can be seen that the traction rope is passed through the second through hole of the bottom clamp, and when the traction rope pulls the net assembly to slide down to the bottom, the net assembly is clamped in the clamping groove, thereby effectively preventing the farmed fish from escaping.

[0044] Furthermore, the sliding part is a nylon braided rope.

[0045] Further, the first rotating mechanism is an electric rotating mechanism or a manual rotating mechanism, and the second rotating mechanism is an electric rotating mechanism or a manual rotating mechanism.

[0046] From the above description, it can be known that an electric rotating mechanism or a manual rotating mechanism can be used according to actual conditions. However, no matter which rotating mechanism is used, it is more convenient and labor-saving than the user directly pulling by hand.

[0047] Furthermore, the cage frame is a polygonal cage structure, and at least one set of mounting components, net components and winding devices are arranged on each side of the cage frame.

[0048] Furthermore, the cage frame and installation components are both steel structures.

[0049] From the above description, it can be seen that the steel structure has sufficient strength. Under the condition that the cost increase can be controlled, it can ensure that the water area of ​​the deep-water cage is not prone to large swings under the impact of water flow, thereby not causing damage to the aquaculture in the deep-water cage. That is, it increases the stability of the aquaculture water body and the strength of the cage structure, and at the same time greatly improves the deep-water cage's ability to resist wind and waves.

[0050] Please refer to Figures 1 to 6 , Embodiment 1 of the present invention is:

[0051] A deep-water net cage with rapidly replaceable nets comprises a net cage frame 1, a mounting assembly 2, a net assembly 3 and a winding device 4, wherein the net cage frame 1 forms an internal breeding space 11, and a bottom net is fixedly arranged at the bottom of the net cage frame 1.

[0052] In this embodiment, the cage frame 1 is a polygonal cage structure, and at least one set of mounting components 2, net clothing components 3 and winding devices 4 are arranged on each side of the cage frame 1. Figure 1 The hexagonal cage structure shown has at least six sets of mounting components 2, net assembly 3 and winding device 4. At the same time, the cage frame 1 and the mounting components 2 are both steel structures, which increase the stability of the aquaculture water body and the strength of the cage structure, and greatly improve the wind and wave resistance of the deep-water cage. In other embodiments, it can also be any polygon such as a quadrilateral or an octagon.

[0053] In this embodiment, the mounting assembly 2 is closely arranged on the cage frame 1 along the outer edge of the internal breeding space 11; specifically, each set of mounting assembly 2 is provided with at least two pairs of sliding brackets, and each pair of sliding brackets is slidably connected to the net assembly 3; in this way, the net assembly 3 can slide into the bottom of the cage frame 1 along the sliding bracket or be rolled back from the bottom of the cage frame 1.

[0054] In this embodiment, at least one reeling device 4 is provided at a corresponding position of each set of mounting components 2, and each reeling device 4 is detachably connected to the net assembly 3 in the corresponding set of mounting components 2 to drive the net assembly 3 to reel. In this embodiment, because two pairs of sliding brackets are provided, two sets of reeling devices 4 are provided at corresponding positions of each set of mounting components 2, wherein, during use, only one set of net assembly 3 needs to be placed on a pair of sliding brackets.

[0055] As can be seen from the above, as in this embodiment Figure 1As shown, the hexagonal cage structure requires six net components 3. Compared with the previous whole net, the weight of a single net component 3 is reduced by one sixth, which reduces the production cost and the labor intensity of net replacement and net handling. While increasing the weight of a single net component 3, the cage can be enlarged. At this time, if the weight of a single net component 3 is half of the previous whole net, that is, the weight of the net component 3 is reduced, it is also convenient to replace the net. At the same time, the internal breeding space 11 composed of six net components 3 is also larger, that is, the cage can be enlarged.

[0056] At this time, when replacing the net, first slide the new net assembly 3 into the installation assembly 2 through another pair of sliding brackets, and then put away the old net assembly 3 after the new net assembly 3 is installed. In this way, there is always a layer of net assembly 3 in the internal breeding space 11 of the entire deep-water cage, so that the breeding products in the deep-water cage will not be affected when the net is replaced, and there is no need to take out the breeding products in the entire deep-water cage and place them in other deep-water cages before replacing the net, thereby solving the problem of existing net replacement.

[0057] Please refer to Figures 1 to 6 , Embodiment 2 of the present invention is:

[0058] A deep-water net cage capable of quickly replacing nets, based on the above-mentioned embodiment 1, as Figure 2-Figure 3 It can be seen that each pair of sliding brackets includes two sliding members 21 arranged opposite to each other. In this way, the installation component 2 is provided with two sliding members 21 on both sides, so that a sliding member 21 on each side and a corresponding sliding member 21 on the other side form a pair of sliding brackets, that is, there are two pairs of sliding brackets.

[0059] like Figure 3 As shown, each sliding member 21 is provided with a first through hole 211 and a sliding opening 212 opened on a side facing the other sliding member 21; Figure 4 As shown, the net assembly 3 includes a net body 31 and sliding parts 32 arranged on both sides of the net body 31. The size of the sliding part 32 is smaller than the size of the first through hole 211, and the width of the sliding opening 212 is smaller than the width of the sliding part 32 and larger than the thickness of the net.

[0060] like Figure 4 As shown, each winding device 4 includes a traction rope 41 preset in the first through hole 211 and having a diameter greater than the width of the sliding opening 212, a directional wheel 42 arranged below the sliding bracket, and a first rotating mechanism 43 and a second rotating mechanism 44 arranged on the top platform 12 of the mounting assembly 2;

[0061] Wherein, a first fixing member 121 is provided on the top platform 12, such as a standing posture.

[0062] One end of the traction rope 41 is provided with a second fixing member 411 detachably connected to the first fixing member 121, and the other end is detachably connected to the rotating shaft of the first rotating mechanism 43 after passing through the directional wheel 42; thus, the second fixing member 411 can be a buckle as in the present embodiment or not be a fixed form, and the rope can be tied to the first fixing member 121 when necessary. Figure 5 As shown, the traction rope 41 is U-shaped after passing through the directional wheel 42. Therefore, the third fixing member of the present application is not shown in the figure, and the same is true, and it can be buckled or directly tied.

[0063] Among them, one side of the net assembly 3 is detachably connected to the second rotating mechanism 44 and the part of the sliding part 32 on the other side that extends out of the net body 31 is provided with a third fixing part detachably connected to the second fixing part 411. In this way, when putting in the net assembly 3, it is necessary to connect one side of the net assembly 3 to the second rotating mechanism 44 and then wrap it around the second rotating mechanism 44. At this time, the third fixing part on the other side of the net assembly 3 is connected to the second fixing part 411 of the traction rope 41. The first rotating mechanism 43 drives the traction rope 41, and then drives the net assembly 3 to slide along the first through hole 211 to the bottom of the deep-water net cage to achieve the installation of the net. When replacing, the new net assembly 3 is first placed in the net cage through another pair of sliding brackets and another set of winding devices 4, and then the net assembly 3 is driven to be wound by rotating the original second rotating mechanism 44. At this time, the traction rope 41 is driven by the net assembly 3 and slowly returns to the top platform 12, and is connected to the first fixing part 121, waiting for the next net replacement.

[0064] In this embodiment, the sliding portion 32 is a nylon braided rope, wherein the diameters of the traction rope 41 and the nylon braided rope are larger than the thickness of the net body 31. For example, the diameter of the first through hole 211 is 15 mm, and the thickness of the net body 31 is only between 2-4 mm. The traction rope 41 and the nylon braided rope can be set between (10 mm, 15 mm), and correspondingly, the sliding opening 212 is between (4 mm, 10 mm).

[0065] In this embodiment, the first rotating mechanism 43 and the second rotating mechanism 44 are manual rotating mechanisms, which is selected according to actual needs. This is because the net cage needs to be placed on the seabed, and the electric rotating mechanism is easily corroded by seawater and loses its electric function. In other embodiments, on the basis of enhancing the corrosion resistance of the seal, in order to further reduce the labor intensity, the first rotating mechanism 43 and the second rotating mechanism 44 can also be electric rotating mechanisms.

[0066] Please refer to Figures 1 to 6 , Embodiment 3 of the present invention is:

[0067] A deep-water net cage capable of quickly replacing nets, based on the above-mentioned second embodiment, as Figure 5 and Figure 6 As shown, in this embodiment, a bottom clamp 5 is further provided between the sliding bracket and the directional wheel 42; wherein the bottom clamp 5 is provided with a second through hole 51 for the traction rope 41 to pass through, and a clamping groove 52 recessed toward the directional wheel 42 is provided on the side close to the sliding bracket.

[0068] In this way, the traction rope 41 passes through the second through hole 51 of the bottom clamp 5, and when the traction rope 41 pulls the net assembly 3 to slide down to the bottom, the net assembly 3 is clamped in the clamping groove 52 to clamp and fix the net assembly 3, so that the net will not swing and fall off due to various marine conditions or the impact of fish, thereby effectively preventing the escape of farmed fish.

[0069] Among them, in the above three embodiments, two sets of winding devices 4 are used. In actual use, according to the specific size of the entire deep-water net cage, that is, the width of the single-piece net assembly 3, three or four sets of winding devices 4 can be appropriately selected in the middle for cooperation. On the one hand, it avoids concentration of force and facilitates the placement and winding of the net assembly 3. On the other hand, the traction rope 41 of each set of winding devices 4 is clamped into the bottom clamp 5, so that the net body 31 of the entire net assembly 3 is more stable.

[0070] In summary, the deep-water net cage with quickly replaceable nets provided by the present invention can reduce the labor intensity of replacing and carrying the nets because the net assembly is made of sheets, which is convenient for replacing the nets and realizing large-scale net cages; in addition, when replacing the nets, first slide the new net assembly into the installation assembly through another pair of sliding brackets, so that the old net assembly can be put away after the new net assembly is installed, so that the farmed fish in the deep-water net cage will not be affected when the nets are replaced, thereby solving the problem of existing net replacement; at the same time, the traction rope is passed through the second through hole of the bottom clamp, and when the traction rope pulls the net assembly to slide down to the bottom, the net assembly is clamped in the clamping groove, thereby effectively preventing the escape of farmed fish.

[0071] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A deep-water net cage capable of quickly replacing nets, characterized in that: It includes a cage frame, a mounting assembly, a net assembly and a winding device, wherein the cage frame forms an internal breeding space, and a bottom net is fixedly arranged at the bottom of the cage frame; The mounting components are closely arranged in multiple sets on the cage frame along the outer edge of the internal breeding space; Each set of the mounting components is provided with at least two pairs of sliding brackets, and each pair of sliding brackets is slidably connected to the net assembly; Each pair of the sliding brackets comprises two sliding members arranged opposite to each other, each of the sliding members is provided with a first through hole and a sliding opening on a side facing the other sliding member; The net clothing component comprises a net clothing body and sliding parts arranged on both sides of the net clothing body; The size of the sliding portion is smaller than the size of the first through hole; The width of the sliding opening is smaller than the width of the sliding portion and larger than the thickness of the net; The sliding part is a nylon braided rope; Each of the winding devices comprises a traction rope preset in the first through hole and having a diameter greater than the width of the sliding opening, a directional wheel arranged below the sliding bracket, and a first rotating mechanism and a second rotating mechanism arranged on the top platform of the mounting assembly; A first fixing member is arranged on the top platform, a second fixing member detachably connected to the first fixing member is arranged at one end of the traction rope, and the other end is detachably connected to the rotating shaft of the first rotating mechanism after passing around the directional wheel; One side of the net component is detachably connected to the second rotating mechanism, and a portion of the sliding portion on the other side extending out of the net body is provided with a third fixing member detachably connected to the second fixing member; A bottom clamp is also provided between the sliding bracket and the directional wheel; The bottom clamp is provided with a second through hole for the traction rope to pass through, and a clamping groove recessed toward the directional wheel is provided on a side close to the sliding bracket; At least one reeling device is provided at a corresponding position of each set of the installation components, and each reeling device is detachably connected to a net assembly in a corresponding set of the installation components to drive the net assembly to be reeled.

2. A deep-water net cage with rapidly replaceable nets according to claim 1, characterized in that: The first rotating mechanism is an electric rotating mechanism or a manual rotating mechanism, and the second rotating mechanism is an electric rotating mechanism or a manual rotating mechanism.

3. A deep-water net cage capable of quickly replacing nets according to any one of claims 1 to 2, characterized in that: The cage frame is a polygonal cage structure, and at least one set of mounting components, a net assembly and a winding device is arranged on each side of the cage frame.

4. A deep-water net cage capable of quickly replacing nets according to any one of claims 1 to 2, characterized in that: The cage frame and installation components are both steel structures.

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