Escape-proof net cage for aquaculture

Abstract

The utility model discloses an anti -escape net cage for aquaculture belongs to aquaculture equipment technical field, including fixed frame, inner frame, outer frame, connecting rod and telescopic mechanism, and the fixed frame inner wall is equipped with fixed groove no.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, and in particular to an escape-proof net cage for aquaculture. Background Technology

[0002] Aquaculture cages are key facilities for large-scale fish farming in open waters such as oceans, lakes, and reservoirs. They are used to confine and manage aquaculture organisms within a specific water space. In practical applications, the assembly and fixing of existing cage frames and nets requires a lot of manpower for binding or the use of complex fasteners, resulting in cumbersome and inefficient installation steps. In addition, during the farming cycle, the nets will accumulate a large amount of marine life or become damaged, requiring regular cleaning or replacement. This complex fixing method makes the disassembly and maintenance of the cages equally time-consuming and labor-intensive, increasing the operating costs of aquaculture.

[0003] Meanwhile, once the water depth of traditional net cages is set, it is difficult to change. The positional relationship between the buoyancy device and the cage body is fixed. This makes it impossible for the net cages to flexibly adjust the operating water layer according to the different growth stages of farmed fish, seasonal water temperature changes, or to avoid harsh surface environments such as typhoons and red tides. This functional deficiency limits the flexibility and safety of aquaculture, fails to provide the optimal growth environment for farmed organisms, and increases the risk of net cage damage and escape of farmed organisms in the event of extreme weather.

[0004] Therefore, this utility model proposes an escape-proof net cage for aquaculture to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problems of cumbersome assembly and disassembly process, high maintenance cost, and inability to flexibly adjust the water depth according to the aquaculture needs in the existing technology of aquaculture net cages, this utility model aims to provide an escape-proof net cage for aquaculture with an improved structure that can effectively solve the above problems.

[0006] This utility model provides an escape-proof net cage for aquaculture, comprising: a fixed frame, a connecting rod, a telescopic mechanism, an inner frame and an outer frame, wherein an inner net is fixed to the bottom of the inner frame and an outer net is fixed to the bottom of the outer frame.

[0007] The bottom surface of the fixed frame has two slots; the inner frame and the outer frame are respectively connected to the inner wall of the slots.

[0008] Furthermore, the inner wall of the fixed frame is provided with a fixing groove 1, and the outer walls of both the inner and outer frames are provided with fixing groove 2. Multiple fixing blocks are fixed to the outer wall of the connecting rod. The connecting rod slides axially through the corresponding positions of the fixed frame, inner frame, and outer frame, so that the fixing blocks can be simultaneously inserted into fixing groove 1 and fixing groove 2, thereby realizing the disassembly and fixing of the cage.

[0009] In addition, the telescopic mechanism includes a sliding block fixed to the side of the fixed frame and a pontoon. A slot is fixed to the rear side of the pontoon, and the slot slides against the inner wall of the sliding block to drive the pontoon to move up and down.

[0010] Preferably, the outer wall of the slot one is provided with a slider, and the outer wall of the slot block is provided with a limiting groove; the telescopic mechanism also includes a limiting block two, which can be inserted into the limiting groove to lock the slider.

[0011] Preferably, the outer wall of the second limiting block is provided with a magnetic suction groove; the telescopic mechanism also includes a first limiting block, which is magnetically attracted and locked onto the inner wall of the magnetic suction groove.

[0012] Preferably, the inner frame and the outer frame are concentrically arranged, with the outer frame surrounding the outside of the inner frame.

[0013] Preferably, the slider is integrally formed on the outer wall of the slot.

[0014] Preferably, the fixing blocks are arranged in an array along the axial direction of the connecting rod.

[0015] Preferably, the fixed frame, inner frame, and outer frame are all rectangular frame structures.

[0016] Preferably, both the inner and outer networks are made of flexible mesh material.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting a connecting rod, has multiple fixing blocks fixed on the outer wall of the connecting rod, and a fixing groove one is opened on the inner wall of the fixing frame, and a fixing groove two is opened on the outer walls of the inner frame and the outer frame. By sliding the connecting rod, the fixing blocks are simultaneously locked in the fixing groove one and the fixing groove two, which solves the problems of cumbersome disassembly and assembly steps and unreliable fixing in the prior art, making disassembly and assembly convenient and fixing firm and reliable.

[0019] 2. This utility model, by setting up a telescopic mechanism, allows the slot one on the rear side of the float box to slide on the inner wall of the sliding block, and uses the limiting block two to lock into the limiting groove to lock the slider, thereby achieving the locking of the float box position. This solves the problem in the prior art that the water depth of the net cage is fixed and cannot be flexibly adjusted according to the aquaculture needs, and the water depth can be adjusted arbitrarily. Attached Figure Description

[0020] Figure 1 This is a perspective view of the front side of the fixing frame of an escape-proof net cage for aquaculture proposed in this utility model;

[0021] Figure 2 This is a partial structural breakdown of the outer net structure of an escape-proof net cage for aquaculture proposed in this utility model;

[0022] Figure 3 This is a partial structural diagram of the floating box of an escape-proof net cage for aquaculture proposed in this utility model;

[0023] Figure 4 This is a partial structural diagram of the chute block of an escape-proof net cage for aquaculture proposed in this utility model;

[0024] Figure 5 This is a partial structural diagram of the fixing groove of an escape-proof net cage for aquaculture proposed in this utility model.

[0025] Legend:

[0026] 1. Fixed frame; 2. Telescopic mechanism; 201. Float box; 202. Slider; 203. Slot 1; 204. Limiting block 1; 205. Limiting block 2; 206. Magnetic groove; 207. Limiting groove; 208. Sliding block; 3. Fixed groove 1; 4. Connecting rod; 5. Inner frame; 6. Outer frame; 7. Inner mesh; 8. Fixed groove 2; 9. Outer mesh; 10. Slot 2; 11. Fixed block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Example:

[0029] Please refer to Figures 1 to 5 This utility model embodiment provides an escape-proof net cage for aquaculture, including a fixed frame 1 as a basic support platform and an inner frame 5 and an outer frame 6 detachably housed inside the fixed frame 1. The fixed frame 1, inner frame 5, and outer frame 6 are all rectangular frame structures. To achieve rapid positioning and installation, two elongated slots 10 are provided on the bottom surface of the fixed frame 1. The inner frame 5 and outer frame 6 are concentrically arranged in space, with the outer frame 6 surrounding the outside of the inner frame 5. The lower ends of the inner frame 5 and the lower ends of the outer frame 6 are respectively inserted into and connected to the inner walls of the two slots 10, thereby completing the basic installation and positioning. The bottom of the inner frame 5 is fixedly connected to the inner net 7 by edge stitching or snap-fitting. The bottom of the outer frame 6 is also fixedly connected to the outer net 9. Both the inner net 7 and the outer net 9 are made of flexible mesh material. The double-layered mesh structure provides double protection. To achieve reliable locking of the above-mentioned frame, the net cage also includes a fastening structure composed of connecting rods 4 and corresponding slots.

[0030] Specifically, the inner wall of the fixed frame 1 has a fixing groove 3, and the outer walls of the inner frame 5 and the outer frame 6 each have a fixing groove 8 at corresponding positions. The connecting rod 4 is a slender rod, and multiple fixing blocks 11 are fixedly connected axially at intervals on the outer wall of the connecting rod 4. After assembly, the connecting rod 4 slides axially through the corresponding positions of the fixed frame 1, the inner frame 5, and the outer frame 6. By pushing the connecting rod 4, the multiple fixing blocks 11 on the connecting rod 4 can be precisely and simultaneously engaged in the fixing groove 3 and the two fixing grooves 8. The engagement of the fixing blocks 11 with the inner wall of the groove ensures the safety of the net. To ensure structural stability under water flow impact and to allow for flexible adjustment of aquaculture depth, the net cage is also equipped with a telescopic mechanism 2. The telescopic mechanism 2 includes a sliding block 208 fixedly connected to the outer wall of the fixed frame 1 and a float 201 that provides buoyancy. The rear side of the float 201 is integrally fixedly connected with a slot 203. The cross-sectional shape of the slot 203 matches the inner wall contour of the sliding block 208, allowing the slot 203 to slide smoothly up and down in the inner wall of the sliding block 208, thereby driving the float 201 to move up and down as a whole, changing the draft of the entire net cage.

[0031] Please refer to Figure 3 and Figure 4 The slot 203, integrally fixed to the rear side of the float 201, does not simply slide on the inner wall of the slide block 208. The outer wall of the slot 203 also integrally provides a strip-shaped slider 202. The slider 202 extends longitudinally along the slot 203, and its convex profile fits tightly with the groove reserved on the inner wall of the slide block 208. This ensures greater stability of the float 201 during vertical movement, effectively preventing lateral swaying or disengagement. To precisely control the stopping position of the float 201, the outer wall of the slide block 208 is spaced at specific heights. There are multiple limiting grooves 207, the shape and size of which match the specially designed limiting block 205. The limiting block 205 is pin-shaped or wedge-shaped and can be manually inserted into or removed from any limiting groove 207. When the limiting block 205 is inserted into the limiting groove 207, a part of the limiting block 205 will protrude laterally and precisely lock the slider 202, thereby effectively preventing the further sliding of the locking groove 203 and the float 201, realizing the mechanical locking of the float 201 at a specific height, ensuring the stable suspension of the net cage at a set depth, unaffected by water flow fluctuations.

[0032] To further enhance operational convenience and locking reliability, a magnetic suction groove 206 for adsorption is carefully provided on the outer wall of the second limiting block 205. The magnetic suction groove 206 contains a permanent magnet or a magnetizable material. The mesh cage also includes a first limiting block 204, which has a shape matching the magnetic suction groove 206, and one end of the first limiting block 204 is also provided with a permanent magnet or magnetic material. When the second limiting block 205 needs to be fixed in the insertion position, the first limiting block 204 can be manually adsorbed onto the inner wall of the magnetic suction groove 206, utilizing the magnetic attraction to secure the second limiting block 205. 05 forms an additional fixation to prevent accidental detachment under external vibration or impact, further enhancing the reliability of the buoy 201 position locking. This ingenious magnetic-assisted locking mechanism not only ensures ease of operation but also improves the overall safety of the locking mechanism. The interior of the buoy 201 can be filled with lightweight, high-buoyancy materials, such as polystyrene foam or other closed-cell foam materials, to provide sufficient buoyancy to support the suspension of the net cage in the water. The exterior material of the buoy 201 is made of seawater corrosion-resistant and UV-resistant plastic or composite material to ensure durability and stability during long-term underwater use.

[0033] As a preferred embodiment, to enhance the reliability of the locking and simplify the operation, please refer to... Figure 3 and Figure 4 The outer wall of the second limiting block 205 is provided with a magnetic suction groove 206, and a first limiting block 204 is also provided. The first limiting block 204 is stuck in the inner wall of the magnetic suction groove 206 by magnetic attraction. Both the first limiting block 204 and the magnetic suction groove 206 are provided with permanent magnets. The principle of opposite poles attracting is used to achieve stable adsorption. The magnetic force is used as a second safety measure to effectively prevent the second limiting block 205 from coming loose from the limiting groove 207 due to water flow impact or accidental collision.

[0034] As a preferred embodiment, to improve the smoothness and guiding accuracy of the sliding of the float 201 within the slide block 208, please refer to... Figure 3 and Figure 4 An elongated slider 202 is integrally formed and protrudes from the outer wall of the slot 203. The slider 202 extends along the vertical direction of the slot 203. The inner wall of the slide block 208 is provided with a guide rail that matches the slider 202. The slider 202 and the guide rail form a sliding connection, which can provide more stable guidance and ensure that the float box 201 will not deflect or get stuck when moving up and down.

[0035] As a preferred embodiment, to make the mounting bases for intranet 7 and extranet 9 more stable, please refer to... Figure 1 and Figure 5The bottom surface of the fixed frame 1 has two slots 10 integrally and parallelly opened along the length direction. The lower edges of the inner frame 5 and the outer frame 6 are respectively pluggably fixed in the two slots 10. This not only provides solid bottom support for the inner frame 5 and the outer frame 6, but also makes the assembly of the cage more convenient. The initial fixing can be completed simply by aligning the two frames with the slots and inserting them.

[0036] As a preferred implementation method, in order to form an effective dual escape barrier, please refer to... Figure 1 The inner frame 5 and the outer frame 6 are concentrically set inside the fixed frame 1. The outer frame 6 is slightly larger than the inner frame 5, so that the outer frame 6 can completely cover the outside of the inner frame 5. A certain safety distance is formed between the inner net 7 and the outer net 9. Even if the inner net 7 is accidentally damaged, the outer net 9 can serve as a second line of defense to effectively prevent the farmed organisms from escaping.

[0037] As a preferred embodiment, to improve the fastening efficiency and strength of the connecting rod 4, please refer to... Figure 1 Multiple fixing blocks 11 are arranged in an array along the axial direction of the connecting rod 4. The spacing of the fixing blocks 11 corresponds to the positions of fixing slot 1 3 and fixing slot 2 8. When the connecting rod 4 is inserted, multiple fixing blocks 11 can simultaneously engage with multiple slots, distributing the pressure to multiple locking points, which greatly enhances the torsional and shear resistance of the overall structure.

[0038] As a preferred embodiment, in order to adapt to different aquaculture environments and water flow conditions, the overall structure of the fixed frame 1, inner frame 5 and outer frame 6 is designed as a sturdy rectangular frame structure, which has good stability and load-bearing capacity, and is easy to carry out modular production and transportation.

[0039] In order to ensure the flexibility and durability of the netting, both the inner net 7 and the outer net 9 are made of flexible mesh materials such as high-strength polyethylene. This material is not only resistant to seawater corrosion and biological adhesion, but also provides a certain buffer when it is bumped by fish, reducing damage to the farmed organisms.

[0040] Working principle:

[0041] When assembling the cage, firstly, insert the lower edges of the inner frame 5 and the outer frame 6 into the two slots 10 on the bottom of the fixed frame 1 to complete the initial positioning and support. Then, insert the connecting rod 4 through the through holes reserved on the side walls of the fixed frame 1, the inner frame 5 and the outer frame 6. By sliding the connecting rod 4 axially, the multiple fixing blocks 11 fixed on the outer wall of the connecting rod 4 can accurately slide into and simultaneously lock into the fixing slot 3 on the inner wall of the fixed frame 1 and the fixing slot 8 on the outer walls of the inner frame 5 and the outer frame 6. Due to the tight fit between the fixing block 11 and these three slots, a strong pin-type locking structure is formed, which tightly connects the three originally separate frames into a stable whole, realizing convenient disassembly and assembly and solid and reliable fixing of the cage, avoiding the cumbersome steps in the traditional cage installation process.

[0042] When adjusting the water depth of the net cage, the operator first pulls out the limiting block 204 adsorbed on the magnetic groove 206, and then pulls out the limiting block 205 from the limiting groove 207. At this time, the lock on the slider 202 is released. Since the slot 203 on the rear side of the float 201 is slidably connected to the sliding block 208 fixed on the fixed frame 1, the operator can manually move the float 201 up or down. The movement of the float 201 will drive the slider 202 to slide smoothly up and down on the inner wall of the sliding block 208 through the slot 203. When the float 201 moves to the preset aquaculture depth, the operator will... The second limiting block 205 is reinserted into the limiting groove 207 at the corresponding height on the outer wall of the sliding block 208. The second limiting block 205 will once again block the movement path of the slider 202, thereby locking the position of the float 201. Finally, the first limiting block 204 is re-adsorbed onto the magnetic groove 206 of the second limiting block 205, and secondary reinforcement is achieved by using magnetic force. Through the sliding cooperation between the float 201 and the sliding block 208 and the synergistic effect of the locking mechanism composed of the first limiting block 204 and the second limiting block 205, the problem of the fixed water depth of the net cage in the prior art and the inability to adjust it flexibly is solved, and arbitrary adjustment of the aquaculture depth is realized.

Claims

1. An escape-proof net cage for aquaculture, comprising: The frame consists of a fixed frame (1), an inner frame (5), an outer frame (6), a connecting rod (4), and a telescopic mechanism (2). The fixed frame (1) has two slots (10) on its bottom surface. The bottom of the inner frame (5) is fixed with an inner mesh (7), and the bottom of the outer frame (6) is fixed with an outer mesh (9). The inner frame (5) and the outer frame (6) are respectively connected to the inner wall of the slots (10). Its features are, The inner wall of the fixed frame (1) is provided with a fixing groove 1 (3), and the outer walls of the inner frame (5) and the outer frame (6) are provided with fixing groove 2 (8). The outer wall of the connecting rod (4) is fixed with multiple fixing blocks (11). The connecting rod (4) slides along the axial direction through the corresponding positions of the fixed frame (1), the inner frame (5) and the outer frame (6). The telescopic mechanism (2) includes a sliding block (208) fixed to the side of the fixed frame (1) and a float (201). A slot (203) is fixed to the rear side of the float (201). The slot (203) slides in the inner wall of the sliding block (208) to drive the float (201) to move up and down.

2. The escape-proof net cage for aquaculture according to claim 1, characterized in that, The outer wall of the slot 1 (203) is provided with a slider (202), the outer wall of the slide block (208) is provided with a limiting groove (207), and the telescopic mechanism (2) also includes a limiting block 2 (205), which can be inserted into the limiting groove (207) to lock the slider (202).

3. The escape-proof net cage for aquaculture according to claim 2, characterized in that, The outer wall of the second limiting block (205) is provided with a magnetic suction groove (206), and the telescopic mechanism (2) also includes a first limiting block (204), which is magnetically attracted and locked in the inner wall of the magnetic suction groove (206).

4. The escape-proof net cage for aquaculture according to claim 1, characterized in that, The inner frame (5) and the outer frame (6) are arranged concentrically, and the outer frame (6) surrounds the outside of the inner frame (5).

5. The escape-proof net cage for aquaculture according to claim 2, characterized in that, The slider (202) is integrally formed on the outer wall of the slot (203).

6. The escape-proof net cage for aquaculture according to claim 1, characterized in that, The fixing blocks (11) are arranged in an array along the axial direction of the connecting rod (4).

7. The escape-proof net cage for aquaculture according to claim 1, characterized in that, The fixed frame (1), the inner frame (5) and the outer frame (6) are all rectangular frame structures.

8. The escape-proof net cage for aquaculture according to claim 1, characterized in that, Both the inner network (7) and the outer network (9) are made of flexible mesh material.

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