Feed blocking device for deep sea net cage

Abstract

The utility model relates to the technical field of deep-sea cultivation, in particular to a feed blocking device for a deep-sea net cage, which comprises a feed blocking net and support frames arranged on two sides of the feed blocking net, the feed blocking net consists of a first net body and a second net body, the first net body and the second net body are sleeved inside and outside, and the support frames are arranged on two sides of the feed blocking net. The first net body and the second net body are detachably connected with the supporting frame through elastic bodies at the upper end and the lower end. Wherein the elastic body at one end and the supporting frame are fixed through a positioning structure, meshes on the inner side and the outer side of the first net body and the second net body are arranged in a staggered mode through the positioning structure, and the pair of net bodies is detachably connected with the supporting frame at the upper end and the supporting frame at the lower end in a clamping mode. The material blocking net can be detached and replaced, the position between the pair of net bodies can be finely adjusted through the positioning structure, meshes between the pair of net bodies are arranged in a staggered mode, and the effect of adjusting the sizes of the meshes can be achieved.

Description

A feed barrier device for deep-sea cages Technical Field

[0001] This utility model relates to the field of deep-sea aquaculture technology, and in particular to a feed containment device for deep-sea cages. Background Technology

[0002] Deep-sea cages are devices composed of a frame system, a net cage, a fixing system, and supporting facilities. By utilizing the interaction of the fixed platform and the characteristics of the cage itself, the cage is lowered to a limited depth underwater. Since wave intensity decreases exponentially with increasing water depth, the wave intensity at the location of the cage at a certain depth will also decrease by a factor of two, thereby achieving the purpose of resisting wind and waves.

[0003] In deep-sea cage fish farming, the feed used is mostly extruded feed. After being put into the water, the feed either floats on the surface or sinks into the seawater, requiring a feed interception device to intercept it. For example, the existing technology disclosed in Chinese Patent Publication No. "CN213784867U" is a deep-sea cage anti-wind and wave feed interception device, which involves the marine technology industry. It includes a cage frame, mounting column, air jet ring, feeding cylinder, hopper, air jet nozzle, mounting ring, small aperture feed interception net, high-pressure air interface pipe, gear ring, gear, gear shaft, reducer, motor, motor mounting base, hollow ventilation cavity, feeding motor, feeding reducer, drive shaft, and spiral guide rod. This utility model design achieves uniform feeding of aquaculture feed through an automatic feeding cylinder, an air jet ring, and a bottom small-aperture baffle net. Under the action of the air jet ring, the feed is quickly concentrated in the middle of the net cage, while the small-aperture baffle net traps feed that is carried away by the waves inside the net cage, effectively concentrating the feed in the net cage. This facilitates the control of feeding speed and quantity, and avoids feed waste.

[0004] In practice, the feeding needs to be adjusted in a timely manner according to the size of the fish, water quality, ocean current speed, etc., and the feed is mostly extruded feed. The feed is blocked by a feed trap, but the mesh size of the feed trap cannot be adjusted, and some small pieces of feed are prone to leakage. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing material-blocking nets where the mesh size is not adjustable, and to propose a feed-blocking device for deep-sea cages.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a feed containment device for deep-sea cages, including a containment net and a support frame set on both sides of the containment net. The containment net is composed of a first net body and a second net body. The first net body and the second net body are inner and outer sleeved together, and the first net body and the second net body are detachably connected to the support frame through elastic bodies at the upper and lower ends.

[0008] In this configuration, one end of the elastic body is fixed to the support frame by a positioning structure, and the first mesh body and the second mesh body are arranged with the inner and outer meshes staggered by the positioning structure.

[0009] Furthermore, the elastomer has a ring structure, with its two ends fixed or separated by fasteners. The bottom of the elastomer on the inner and outer sides extends inward to form a relief groove, and several positioning protrusions are evenly distributed in the extension direction of the relief groove.

[0010] Furthermore, the first mesh body and the second mesh body are fitted with a clearance, and a reinforcing strip is fixedly connected to the outer edge of both the first mesh body and the second mesh body. The reinforcing strip is disposed in the relief groove, and the reinforcing strip is also movably inserted into the positioning protrusion through a through hole.

[0011] Furthermore, the cross-section of the support frame is U-shaped, the two recessed portions of the support frame are arranged opposite each other, and both of them penetrate the side walls and form at least one pair of elastic portions. The tops of the two elastic portions extend inward on opposite sides to form a snap-fit ​​portion.

[0012] Furthermore, the inner and outer elastic bodies close together and slide within the recessed portion of the support frame, while the snap-fit ​​portions on both sides stop the elastic bodies through abutment deformation.

[0013] Furthermore, the positioning structure includes a fixing rod, wherein the top of one of the elastic bodies is inserted into the support frame via the fixing rod, and the top of the other elastic body is fitted with a positioning glass bead. The support frame has at least two positioning holes spaced apart along the recessed portion, and the telescopic column end of the positioning glass bead engages in the positioning hole.

[0014] The present invention proposes a feed interception device for deep-sea cages, which has the following advantages: The present invention has a first net body and a second net body with a gap fit. The pair of net bodies are detachably connected to the upper and lower end support frames by a snap-fit ​​method. On the one hand, the feed interception net can be disassembled and replaced. On the other hand, the positioning structure allows for fine adjustment of the position between the pair of net bodies. By adjusting the position, the mesh size between the pair of net bodies can be staggered, thereby achieving the function of adjusting the mesh size. The mesh size can be adjusted in a timely manner according to the size of the fish, water quality, ocean current strength, etc., to prevent small particles from leaking out. The structure is simple and highly practical. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the structure of this utility model;

[0016] Figure 2 is a schematic diagram of the positioning structure of this utility model;

[0017] Figure 3 is a schematic diagram of the enlarged structure of region A in Figure 2;

[0018] Figure 4 is a cross-sectional view of this utility model;

[0019] Figure 5 is a structural schematic diagram of the snap-fit ​​part of this utility model;

[0020] Figure 6 is a schematic diagram of the structure of the first mesh and the second mesh of this utility model.

[0021] In the diagram: 1. Material barrier; 11. First mesh body; 12. Second mesh body; 2. Support frame; 21. Elastic part; 22. Snap-fit ​​part; 3. Elastic body; 31. Relief groove; 32. Positioning protrusion; 4. Positioning structure; 41. Fixing rod; 42. Positioning glass bead; 43. Positioning hole; 5. Fastener; 6. Reinforcing strip; 61. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Referring to Figures 1-6, a feed containment device for deep-sea cages includes a containment net 1 and a support frame 2 disposed on both sides of the containment net 1. The containment net 1 is composed of a first net body 11 and a second net body 12. The first net body 11 and the second net body 12 are inner and outer sleeved together, and the first net body 11 and the second net body 12 are detachably connected to the support frame 2 through elastic bodies 3 at the upper and lower ends.

[0024] In this configuration, one end of the elastic body 3 is fixed to the support frame 2 by a positioning structure 4, and the first mesh body 11 and the second mesh body 12 are arranged with alternating meshes on the inner and outer sides by the positioning structure 4.

[0025] In some embodiments, the material blocking device is placed inside the net cage. The upper rod of the material blocking device is kept above the water surface inside the net cage, and the lower rod is below the water surface inside the net cage. Feed can then be placed inside the material blocking device. The feed is mostly extruded feed. The feed floats on the sea surface and is blocked by the material blocking net.

[0026] Specifically, the stability of the material blocking device can be ensured by fixing the top support frame 2 to the upper rod of the net box, and an anchor can be set at the bottom of the bottom support frame 2 to stretch the first net body 11 and the second net body 12 by stretching with a heavy object, which can further improve the wind and wave resistance of the material blocking device.

[0027] Furthermore, as shown in Figure 6, the mesh size of the first mesh 11 and the second mesh 12 is staggered by the positioning structure 4, which can be used to adjust the mesh size and prevent small pieces of feed from leaking out through the mesh. It is worth mentioning that the first mesh 11 and the second mesh 12 have the same structure.

[0028] Furthermore, the elastic body 3 has a ring structure, and its two ends are fixed or separated by fasteners 5. The bottom of the elastic body 3 on the inner and outer sides extends inward to form a relief groove 31, and a number of positioning protrusions 32 are evenly distributed in the extension direction of the relief groove 31.

[0029] Furthermore, the first mesh body 11 and the second mesh body 12 are fitted with a clearance, and a reinforcing strip 6 is fixedly connected to the outer edge of both the first mesh body 11 and the second mesh body 12. The reinforcing strip 6 is disposed in the relief groove 31, and the reinforcing strip 6 is also movably inserted into the positioning protrusion 32 through the through hole 61.

[0030] In this embodiment, the elastic body 3 is an elastic structure and the fastener 5 is a locking bolt. As shown in Figure 3, the two ends of the elastic body 3 are provided with stepped portions, the two stepped portions are engaged together, and the two stepped portions are provided with countersunk holes on opposite sides. The locking bolt is threaded to the countersunk holes to fix the two ends of the elastic body 3 and to prevent the fastener 5 from contacting the inner wall of the support frame 2.

[0031] Furthermore, when the two ends of the elastic body 3 are separated, the reinforcing strips 6 on both sides are set in the relief grooves 31 of the elastic bodies 3 at the upper and lower ends, and the reinforcing strips 6 are movably inserted into the positioning protrusions 32 through the through holes 61, so that when the elastic bodies 3 on both sides are engaged in the recessed part of the support frame 2, the mesh body is prevented from separating from the elastic body 3.

[0032] Furthermore, the first mesh body 11 and the second mesh body 12 are fitted with a gap to prevent the feed from getting stuck between the two mesh bodies due to excessive gap, and to prevent the mesh bodies on both sides from getting stuck when rotating one of the mesh bodies. Of course, several ball bearings can be embedded in the recessed part of the support frame 2 to reduce the friction between the support frame 2 and the elastic body 3.

[0033] More specifically, the support frame 2 has a U-shaped cross-section, and the two recessed portions of the support frame 2 are arranged opposite to each other. Both of them penetrate the side walls and form at least one pair of elastic portions 21. The tops of the two elastic portions 21 extend inward from the opposite side to form a snap-fit ​​portion 22.

[0034] In general, the elastic bodies 3 on both the inner and outer sides close together and slide within the recessed portion of the support frame 2, while the snap-fit ​​portions 22 on both sides stop the elastic bodies 3 by resisting deformation.

[0035] In this embodiment, the support frame 2 is an elastic structure, and the locking part 22 and the elastic part 21 are in an L-shaped structure. When the protruding part of the locking part 22 slides against the elastic body 3, it deforms to avoid the elastic body 3, and after restoring its deformation, it locks with the elastic body 3.

[0036] Finally, the positioning structure 4 includes a fixing rod 41, one of the elastic bodies 3 having its top inserted into the support frame 2 via the fixing rod 41, and the other elastic body 3 having a positioning glass bead 42 embedded in its top. The support frame 2 has at least two positioning holes 43 spaced apart along the recessed portion, and the telescopic column end of the positioning glass bead 42 engages in the positioning hole 43.

[0037] In specific operation, the positioning glass bead 42 is preferably made of corrosion-resistant materials such as stainless steel. The positioning glass bead 42 is existing technology, and its specific structure will not be described in detail. In addition, the telescopic column end of the positioning glass bead 42 disengages from the positioning hole 43 by retracting inward, and by rotating the corresponding elastic body 3, the telescopic column end of the positioning glass bead 42 is aligned with another positioning hole 43. When its telescopic column end is reset and engaged with the corresponding positioning hole 43, the mesh size between the first mesh body 11 and the second mesh body 12 can be adjusted.

[0038] Working method: During operation, the reinforcing strip 6 is set in the relief groove 31, and the reinforcing strip 6 is movably inserted into the positioning protrusion 32 through the through hole 61 to prevent the net body from detaching from the elastic body 3. When both ends of the net body are set in the relief groove 31, the first net body 11 and the second net body 12 are set inside and outside, and the elastic bodies 3 on both sides are set in the recessed part of the support frame 2 by abutting and sliding. At this time, the support frame 2 will fix the pair of elastic bodies 3 by snapping the elastic body 3 with the snap-fit ​​part 22.

[0039] Then, the fixing rod 41 at the top of one of the elastic bodies 3 is inserted into the support frame 2 and is in a fixed state. The positioning glass bead 42 is embedded in the top of the other elastic body 3. The telescopic column end of the positioning glass bead 42 engages with the positioning hole 43 to achieve the function of fixing a pair of elastic bodies 3.

[0040] Finally, after pressing the telescopic end of the positioning glass bead 42 to retract and disengage from the positioning hole 43, rotate the corresponding elastic body 3 so that the telescopic end of the positioning glass bead 42 corresponds to another positioning hole 43. When the telescopic end is reset and engaged with the corresponding positioning hole 43, the mesh size between the first mesh body 11 and the second mesh body 12 can be adjusted.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A feed containment device for deep-sea cages, comprising a containment net (1) and support frames (2) disposed on both sides of the containment net (1), characterized in that: The material barrier net (1) is composed of a first net body (11) and a second net body (12). The first net body (11) and the second net body (12) are inner and outer respectively, and the first net body (11) and the second net body (12) are detachably connected to the support frame (2) through elastic bodies (3) at the upper and lower ends. Among them, one end of the elastic body (3) is fixed to the support frame (2) through a positioning structure (4), and the first net body (11) and the second net body (12) are arranged with the inner and outer meshes staggered through the positioning structure (4).

2. The feed containment device for deep-sea cages according to claim 1, characterized in that: The elastic body (3) has a ring structure, and its two ends are fixed or separated by fasteners (5). The bottom of the elastic body (3) on the inner and outer sides extends inward to form a relief groove (31). Several positioning protrusions (32) are evenly distributed in the extension direction of the relief groove (31).

3. A feed containment device for deep-sea cages according to claim 2, characterized in that: The first mesh body (11) and the second mesh body (12) are fitted with a clearance, and a reinforcing strip (6) is fixedly connected to the outer edge of both the first mesh body (11) and the second mesh body (12). The reinforcing strip (6) is disposed in the relief groove (31), and the reinforcing strip (6) is also movably inserted into the positioning protrusion (32) through the through hole (61).

4. The feed containment device for deep-sea cages according to claim 1, characterized in that: The support frame (2) has a U-shaped cross-section. The two support frames (2) are arranged opposite to each other, and both of them penetrate the two side walls to form at least one pair of elastic parts (21). The tops of the two elastic parts (21) extend inward on opposite sides to form a snap-fit ​​part (22).

5. A feed containment device for deep-sea cages according to claim 4, characterized in that: The elastic bodies (3) on the inner and outer sides close together and slide in the recessed part of the support frame (2). The snap-fit ​​parts (22) on both sides stop the elastic bodies (3) by abutting deformation.

6. A feed containment device for deep-sea cages according to claim 1, characterized in that: The positioning structure (4) includes a fixing rod (41), the top of one of the elastic bodies (3) is inserted into the support frame (2) through the fixing rod (41), and the top of the other elastic body (3) is fitted with a positioning glass bead (42). The support frame (2) has at least two positioning holes (43) spaced apart along the recessed portion, and the telescopic column end of the positioning glass bead (42) is engaged in the positioning hole (43).

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