Escape-proof single-looped nemertopsis culture net cage

Abstract

The utility model discloses an anti-escape monocyclic onchidium aureum culture net cage belongs to aquatic product breeding equipment technical field. The anti-escape monocyclic onchidium aureum culture net cage, including net cage frame body, the inside bottom end of net cage frame body is installed with the chassis, the outside of net cage frame body is installed with a plurality of connecting rods, the outside of net cage frame body is equipped with the floater, one end of connecting rod and the inside fixed connection of floater, the top of net cage frame body is installed with the transverse board, both sides of the top of transverse board all are installed with a pair of hinge, one end of hinge is installed with the roof truss, the top of transverse board is installed with the stand, the inside of stand is equipped with the adjusting mechanism for adjusting the angle of roof truss, the utility model can effectively realize monocyclic onchidium aureum's safe cultivation, high -efficient prevent escape and convenient management, adapt to the large -scale monocyclic onchidium aureum breeding scene, improve the breeding yield and economic benefit, have higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture equipment technology, specifically to an escape-proof single-ringed thorn eel aquaculture cage. Background Technology

[0002] As a benthic aquatic animal with high economic value, *Urechis unicinctus* enjoys continuously growing market demand due to its delicious and nutritious meat, leading to a gradual expansion of its artificial breeding scale. Currently, *Urechis unicinctus* farming mainly adopts traditional net cage or pond bottom seeding methods, with traditional net cages having significant drawbacks.

[0003] Based on the above, the inventors have discovered the following problems: When using the current Ulva pertusa aquaculture cages, the Ulva pertusa has burrowing characteristics and a soft body with strong elasticity, making it easy for it to escape from the mesh gaps of the cage or the connection gap between the cage and the frame, resulting in a loss of aquaculture yield.

[0004] Therefore, in view of this, we will study and improve the existing structure and its shortcomings to provide a single-ringed urchin aquaculture cage that prevents escape, in order to achieve a more practical value. Utility Model Content

[0005] The purpose of this utility model is to provide an escape-proof single-ringed urchin breeding cage to solve the problem mentioned in the background art that, when using existing single-ringed urchin breeding cages, the single-ringed urchins, due to their burrowing characteristics and soft, elastic bodies, are prone to escape through the mesh gaps of the cage or the connection gap between the cage and the frame, resulting in a loss of breeding yield.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows: An escape-proof single-ringed worm aquaculture cage includes a cage frame. A base frame is installed at the bottom of the cage frame. Several connecting rods are installed on the outside of the cage frame. A float is fitted onto the outside of the cage frame. One end of each connecting rod is fixedly connected to the inside of the float. A horizontal plate is installed at the top of the cage frame. A pair of hinges are installed on both sides of the top of the horizontal plate. A top frame is installed at one end of each hinge. A vertical frame is installed at the top of the horizontal plate. An adjustment mechanism for adjusting the angle of the top frame is provided inside the vertical frame. Inner fine mesh is installed on the inside of the cage frame, at the bottom of the top frame, and at the top of the base frame. Outer reinforcing mesh is installed on the outside of the cage frame, at the top of the top frame, and at the bottom of the base frame.

[0007] Furthermore, the adjustment mechanism includes a threaded rod, the top and bottom ends of which are rotatably connected to the inner top and bottom ends of the upright, respectively. A lifting block is threaded onto the outer side of the threaded rod. A first hinge is installed on both ends of the lifting block. A pull rod is installed on one end of the first hinge. A second hinge is installed on one end of the pull rod. One end of the second hinge is fixedly connected to one side of the top end of the top frame.

[0008] The beneficial effect of adopting the above-mentioned further solution is that by adjusting the threaded rod of the mechanism and rotating it inside the upright frame, the threaded rod can be ensured to rotate stably; by engaging the threaded rod with the lifting block, the rotational motion is converted into the vertical lifting of the lifting block, and then the first hinge, the pull rod and the second hinge drive the top frame angle adjustment, replacing the manual opening and closing of the top frame and reducing the labor intensity of the breeding personnel.

[0009] Furthermore, sliding rods are slidably connected to both sides of the lifting block, and one side of the sliding rod is fixedly connected to the inner side of the upright.

[0010] The beneficial effect of adopting the above-mentioned further solution is that, by sliding the lifting block with the slide rod on both sides, and fixing the slide rod inside the upright, the lifting block is guided to move only in the vertical direction, thus avoiding the lifting block from rotating with the threaded rod or shifting under force.

[0011] Furthermore, a motor is installed at the top of the support frame, and the output end of the motor is connected to the top of the threaded rod.

[0012] The beneficial effect of adopting the above-mentioned further solution is that by connecting the motor at the top of the support frame to the top of the threaded rod, a stable power is provided for the rotation of the threaded rod, realizing the automatic adjustment of the top frame angle without the need for manual rotation of the threaded rod, thus improving operating efficiency.

[0013] Furthermore, the inner fine mesh has a mesh size of 0.3-0.5mm, and the inner fine mesh is woven from food-grade polyethylene material. Its inner side is uniformly provided with barbed anti-escape protrusions, which are inclined downwards at 45° and have a height of 5-8mm.

[0014] The beneficial effects of adopting the above-mentioned further scheme are that the 0.3-0.5mm mesh size of the inner fine mesh accurately prevents the escape of Ulva annuli, while allowing plankton in the water to enter the cage, providing natural food for Ulva annuli and reducing the cost of artificial feeding. The 45° downward tilting, 5-8mm high barbed anti-escape protrusions on the inner side of the fine mesh form a one-way channel, further reducing the escape rate.

[0015] Furthermore, the outer reinforcing mesh has a mesh size of 2-3 cm and is made of highly elastic nylon material.

[0016] The beneficial effect of adopting the above-mentioned further solution is that, by using an outer reinforcing net with a mesh size of 2-3 cm, large external organisms can be prevented from entering the net cage to prey on the single-ringed urticaria without affecting water exchange, while also preventing the loss of food from inside the net cage.

[0017] Furthermore, the float is ring-shaped.

[0018] The beneficial effect of adopting the above-mentioned further solution is that, through the ring-shaped float, in cooperation with the connecting rod on the outside of the net cage frame, the buoyancy is evenly distributed around the net cage, ensuring that the net cage always remains vertical in the water, avoiding the net cage tilting and causing local net body to be submerged or exposed, thus ensuring the escape prevention effect.

[0019] Compared with existing technologies, the beneficial effects of this utility model are as follows: This escape-proof *Urechis tomentosa* aquaculture cage provides a rigid support frame for the aquaculture space through its cage frame, ensuring that the cage maintains a fixed shape in the water and preventing collapse caused by water flow impact; the bottom frame inside the cage frame enhances the load-bearing capacity of the cage bottom, preventing *Urechis tomentosa* from accumulating or deposits from causing bottom collapse; several connecting rods on the outside of the cage frame achieve a stable connection between the cage frame and the float, preventing the float from shifting and causing the cage to tilt; the ring-shaped float provides uniform buoyancy to the cage, ensuring that the top of the cage is always above the water surface, preventing *Urechis tomentosa* from escaping from the water surface; and through... The horizontal plate and hinges work together to allow for flexible opening and closing of the top frame, facilitating feeding, cleaning of the net cage, or harvesting of *Urechis tomentosa*. The vertical frame and adjustment mechanism work together to adjust the angle of the top frame, adapting to different water level changes or operational needs. The inner layer of fine mesh on the inside of the net cage frame, the bottom of the top frame, and the top of the bottom frame prevents *Urechis tomentosa* from escaping. The outer layer of reinforcing mesh on the outside of the net cage frame, the top of the top frame, and the bottom of the bottom frame resists external biological attack or water flow impact, extending the lifespan of the net cage. This invention effectively achieves safe breeding, efficient escape prevention, and convenient management of *Urechis tomentosa*, is suitable for large-scale *Urechis tomentosa* breeding scenarios, and improves breeding yield and economic benefits, possessing high practical value. Attached Figure Description

[0020] Figure 1 This is one of the three-dimensional structural schematic diagrams disclosed in the embodiments of this utility model; Figure 2 This is the second three-dimensional structural schematic diagram disclosed in the embodiment of this utility model; Figure 3 This is one of the disassembled three-dimensional structural diagrams disclosed in the embodiments of this utility model; Figure 4 This is the second disassembled three-dimensional structural diagram disclosed in the embodiment of this utility model; Figure 5 The embodiments disclosed herein Figure 4 A magnified schematic diagram of structure A in the middle.

[0021] In the diagram: 1. Net cage frame; 2. Base frame; 3. Connecting rod; 4. Float; 5. Horizontal plate; 6. Hinge; 7. Top frame; 8. Vertical frame; 9. Adjustment mechanism; 901. Threaded rod; 902. Lifting block; 903. Sliding rod; 904. Motor; 905. First hinge; 906. Pull rod; 907. Second hinge. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides a technical solution: an escape-proof single-ringed worm cage for aquaculture, comprising a cage frame 1, a base frame 2 installed at the bottom of the cage frame 1, several connecting rods 3 installed on the outside of the cage frame 1, a float 4 sleeved on the outside of the cage frame 1, one end of the connecting rod 3 being fixedly connected to the inside of the float 4, a horizontal plate 5 installed at the top of the cage frame 1, a pair of hinges 6 installed on both sides of the top of the horizontal plate 5, a top frame 7 installed at one end of the hinge 6, and the horizontal plate 5... A support frame 8 is installed at the top of the cage, and an adjustment mechanism 9 for adjusting the angle of the top frame 7 is installed inside the support frame 8. Inner fine mesh is installed on the inner side of the cage frame 1, the bottom of the top frame 7, and the top of the bottom frame 2. Outer reinforcing mesh is installed on the outer side of the cage frame 1, the top of the top frame 7, and the bottom of the bottom frame 2. The cage frame 1 provides a rigid support frame for the aquaculture space, ensuring the cage maintains a fixed shape in the water and preventing collapse due to water flow. The bottom frame 2 at the bottom of the cage 1 enhances the load-bearing capacity of the bottom, preventing the accumulation of single-ringed urticaria or sediment from causing bottom collapse. Several connecting rods 3 on the outer side of the cage frame 1 achieve a stable connection between the cage frame 1 and the float 4, preventing the float 4 from shifting and causing the cage to tilt. The ring-shaped float 4 provides uniform buoyancy to the cage, ensuring the top of the cage is always above the water surface and preventing single-ringed urticaria from escaping from the water surface. The horizontal plate 5 and the hinge 6 work together to achieve… The flexible opening and closing of the top frame 7 facilitates feeding, cleaning the net cage, or catching single-ringed worms; the angle of the top frame 7 can be adjusted by the cooperation of the upright frame 8 and the adjustment mechanism 9 to adapt to different water level changes or operational needs; the inner layer of fine netting on the inside of the net cage frame 1, the bottom of the top frame 7, and the top of the bottom frame 2 prevents single-ringed worms from escaping; the outer layer of reinforcing netting on the outside of the net cage frame 1, the top of the top frame 7, and the bottom of the bottom frame 2 resists external biological gnawing or water flow impact, extending the service life of the net cage.

[0024] The adjusting mechanism 9 includes a threaded rod 901. The top and bottom ends of the threaded rod 901 are rotatably connected to the inner top and bottom ends of the upright frame 8, respectively. A lifting block 902 is threadedly engaged on the outer side of the threaded rod 901. A first hinge 905 is installed on both ends of the lifting block 902. A pull rod 906 is installed on one end of the first hinge 905, and a second hinge 907 is installed on one end of the pull rod 906. One end of the second hinge 907 is fixedly connected to one side of the top of the top frame 7. The threaded rod 901 of the adjusting mechanism 9 is rotatably connected to the inside of the upright frame 8 to ensure stable rotation of the threaded rod 901. The threaded engagement between the threaded rod 901 and the lifting block 902 converts the rotational motion into the vertical lifting of the lifting block 902. Then, the first hinge 905, the pull rod 906, and the second hinge 907 drive the angle adjustment of the top frame 7, replacing manual opening and closing of the top frame 7 and reducing the labor intensity of the farmers.

[0025] The lifting block 902 is slidably connected to slide rods 903 on both sides. One side of the slide rod 903 is fixedly connected to the inner side of the upright frame 8. Through the sliding cooperation between the two sides of the lifting block 902 and the slide rod 903, the slide rod 903 is fixed to the inner side of the upright frame 8, guiding the lifting block 902 to move only in the vertical direction, and preventing the lifting block 902 from rotating with the threaded rod 901 or shifting under force.

[0026] The top of the support frame 8 is equipped with a motor 904. The output end of the motor 904 is connected to the top of the threaded rod 901. The connection between the motor 904 at the top of the support frame 8 and the top of the threaded rod 901 provides stable power for the rotation of the threaded rod 901, realizing the automatic adjustment of the angle of the top frame 7 without the need for manual rotation of the threaded rod 901, thus improving operating efficiency.

[0027] The inner fine mesh has a mesh size of 0.3-0.5mm and is woven from food-grade polyethylene. Its inner side is evenly equipped with barbed escape-prevention protrusions at a 45° angle downwards, with a height of 5-8mm. The 0.3-0.5mm mesh size of the inner fine mesh precisely prevents the escape of *Urechis tomentosa*, while allowing plankton in the water to enter the cage, providing natural food for the *Urechis tomentosa* and reducing the cost of artificial feeding. The 45° angled, 5-8mm high barbed escape-prevention protrusions on the inner side of the fine mesh create a one-way channel, further reducing the escape rate.

[0028] The outer reinforcing net has a mesh size of 2-3cm and is made of highly elastic nylon. With its 2-3cm mesh size, the outer reinforcing net can prevent large external organisms from entering the net cage to prey on the single-ringed urticaria without affecting water exchange, while also preventing food from leaking out of the net cage.

[0029] Among them, the float 4 is ring-shaped. The ring-shaped float 4 cooperates with the connecting rod 3 on the outside of the net cage frame 1 to make the buoyancy evenly distributed around the net cage, ensuring that the net cage always remains vertical in the water, avoiding the net cage tilting and causing local net body to be submerged or exposed, and ensuring the escape prevention effect.

[0030] Specifically, the working principle of this escape-proof Ulva protozoan aquaculture cage is as follows: During use, the cage frame 1 provides a rigid support framework for the aquaculture space, ensuring the cage maintains a fixed shape in the water and preventing collapse due to water flow impact; the bottom frame 2 inside the cage frame 1 enhances the load-bearing capacity of the cage bottom, preventing the accumulation of Ulva protozoan or sediment that could cause bottom collapse; and several connecting rods 3 on the outside of the cage frame 1 achieve a stable connection between the cage frame 1 and the float 4, preventing displacement of the float 4 and thus tilting of the cage. The ring-shaped float 4 provides uniform buoyancy to the net cage, ensuring the top of the cage remains above the water surface and preventing the single-ringed worm from escaping. The horizontal plate 5, in conjunction with the hinge 6, allows for flexible opening and closing of the top frame 7, facilitating feeding, cleaning the cage, or harvesting the single-ringed worm. The upright frame 8, in conjunction with the adjustment mechanism 9, allows for adjustment of the angle of the top frame 7 to adapt to different water level changes or operational needs. The inner layer of fine mesh on the inside of the net cage frame 1, the bottom of the top frame 7, and the top of the bottom frame 2 further prevents the single-ringed worm from escaping. The outer side of the net cage frame 1... The outer reinforcing mesh at the top of the top frame 7 and the bottom of the bottom frame 2 resists external biological attack or water flow impact, extending the service life of the net cage. The threaded rod 901 of the adjusting mechanism 9 is rotatably connected to the inside of the upright frame 8, ensuring stable rotation of the threaded rod 901. Through the threaded engagement of the threaded rod 901 with the lifting block 902, the rotational motion is converted into the vertical lifting of the lifting block 902. This, in turn, drives the angle adjustment of the top frame 7 via the first hinge 905, the pull rod 906, and the second hinge 907, replacing manual opening and closing of the top frame 7 and reducing the risk of aquaculture problems. The labor intensity of personnel is reduced by the sliding cooperation between the lifting block 902 and the slide rod 903 on both sides. The slide rod 903 is fixed inside the frame 8, guiding the lifting block 902 to move only in the vertical direction, preventing the lifting block 902 from rotating with the threaded rod 901 or shifting under force. The motor 904 at the top of the frame 8 is connected to the top of the threaded rod 901, providing stable power for the rotation of the threaded rod 901, realizing the automatic adjustment of the angle of the top frame 7, eliminating the need for manual rotation of the threaded rod 901, improving operating efficiency, and through the inner layer of fine mesh 0.3-0.The 5mm mesh size precisely prevents the escape of *Urechis tomentosa*, while allowing plankton to enter the cage, providing natural food for the insects and reducing the cost of artificial feeding. The inner layer of fine mesh features 45° downward-sloping, 5-8mm high barbed protrusions on the inside, creating a one-way channel to further reduce the escape rate. The outer reinforcing mesh, with a 2-3cm mesh size, prevents large external organisms from entering the cage to prey on the *Urechis tomentosa* without affecting water exchange, while also preventing... To prevent feed from leaking out of the net cage, a ring-shaped float 4, in conjunction with a connecting rod 3 on the outside of the net cage frame 1, evenly distributes buoyancy around the net cage, ensuring it remains vertical in the water. This prevents partial submersion or exposure due to tilting, thus guaranteeing escape prevention. This invention effectively enables safe, efficient, and convenient management of *Urechis tomentosa*, making it suitable for large-scale *Urechis tomentosa* farming, increasing yield and economic benefits, and possessing high practical value.

Claims

1. An escape-proof single-ringed urchin aquaculture cage, characterized in that, The cage includes a cage frame (1), with a base frame (2) installed at the bottom of the cage frame (1). Several connecting rods (3) are installed on the outside of the cage frame (1). A float (4) is fitted on the outside of the cage frame (1). One end of the connecting rod (3) is fixedly connected to the inside of the float (4). A horizontal plate (5) is installed at the top of the cage frame (1). A pair of hinges (6) are installed on both sides of the top of the horizontal plate (5). A top frame (7) is installed at one end of the hinge (6). A vertical frame (8) is installed at the top of the horizontal plate (5). An adjustment mechanism (9) for adjusting the angle of the top frame (7) is provided inside the vertical frame (8). Inner fine mesh is installed on the inside of the cage frame (1), the bottom of the top frame (7), and the top of the base frame (2). Outer reinforcing mesh is installed on the outside of the cage frame (1), the top of the top frame (7), and the bottom of the base frame (2).

2. The escape-proof single-ringed urchin aquaculture cage according to claim 1, characterized in that, The adjustment mechanism (9) includes a threaded rod (901), the top and bottom ends of which are rotatably connected to the inner top and bottom ends of the upright (8), respectively. A lifting block (902) is threaded on the outer side of the threaded rod (901). A first hinge (905) is installed on both ends of the lifting block (902). A pull rod (906) is installed on one end of the first hinge (905). A second hinge (907) is installed on one end of the pull rod (906). One end of the second hinge (907) is fixedly connected to one side of the top of the top frame (7).

3. The escape-proof single-ringed urchin aquaculture cage according to claim 2, characterized in that, Both sides of the lifting block (902) are slidably connected to slide rods (903), and one side of the slide rods (903) is fixedly connected to the inner side of the upright frame (8).

4. The escape-proof single-ringed urchin aquaculture cage according to claim 1, characterized in that, A motor (904) is installed at the top of the support frame (8), and the output end of the motor (904) is connected to the top of the threaded rod (901).

5. The escape-proof single-ringed urchin aquaculture cage according to claim 1, characterized in that, The inner fine mesh has a mesh size of 0.3-0.5mm and is woven from food-grade polyethylene. Its inner side is uniformly provided with barbed anti-escape protrusions, which are inclined downwards at 45° and have a height of 5-8mm.

6. The escape-proof single-ringed urchin aquaculture cage according to claim 1, characterized in that, The outer reinforcing mesh has a mesh size of 2-3 cm and is made of highly elastic nylon material.

7. The escape-proof single-ringed urchin aquaculture cage according to claim 1, characterized in that, The float (4) is ring-shaped.

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