Breeding device, breeding method and breeding system

By using a tidal simulation structure and light regulation aquaculture device, the problems of water quality deterioration, high risk of cannibalism, and inconvenient operation in traditional crab farming devices have been solved, providing a stable habitat and improving the survival rate and space utilization of crabs.

CN121795358APending Publication Date: 2026-04-07SOUTHERN MARINE SCIENCE & ENGINEERING GUANGDONG LABORATORY (ZHANJIANG)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Traditional crab farming equipment suffers from problems such as water quality deterioration, high risk of crabs cannibalizing each other, inconvenient operation, and low space utilization, making it difficult to adapt to the needs of large-scale and refined farming.

Method used

A breeding device with a tidal simulation structure was designed. The water level is adjusted by activity or morphological changes to simulate the natural tidal environment. Combined with light regulation, it provides stable habitat conditions, reduces stress response, and improves space utilization.

Benefits of technology

It has achieved stable water quality, reduced stress response in crabs, improved survival rate and space utilization, adapted to the needs of crabs at different growth stages, and simplified the operation process.

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Abstract

The invention discloses a breeding device, a breeding method and a breeding system.In the breeding device, the top of a box body is provided with an opening, and the box body is used for containing water and breeding target animals; the tide simulation structure is arranged in the box body, and the tide simulation structure can move relative to the inner wall of the box body or adjust the water level height in the box body through self shape change. The tide simulation structure in the box body directly acts on a water body in a mode of moving relative to the inner wall or changing the shape of the tide simulation structure, the change process of the water level height can be gentle and controllable without depending on traditional impact type adjustment of water inlet and outlet, stimulation of water flow disturbance to crabs is effectively avoided, and stress reactions such as food refusal and molting failure are reduced; meanwhile, the action of the tide simulation structure is controllable, the water level height requirements of the crabs in different growth stages from young crabs to adult crabs can be flexibly met, and a stable and suitable inhabiting water level height environment is provided for the crabs. The breeding device is used in the breeding method. The breeding system comprises the breeding device.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aquaculture equipment, in particular to a breeding device, a breeding method and a breeding system. BACKGROUND

[0002] Crab (especially parent crab, juvenile crab) breeding has very high requirements for habitat stability, water quality conditions and operation convenience, but traditional crab breeding devices generally have many technical shortcomings, which are difficult to adapt to large-scale and refined breeding needs, such as: 1) traditional breeding boxes are mostly closed structures, with slow circulating water flow, and residual feed and feces are easy to deposit, leading to local water quality deterioration; 2) high risk of crab stress and mutual injury: lack of hiding space and layered structure, crabs are prone to mutual injury due to territorial disputes, and water flow impact can easily cause stress reaction; the water level changes abruptly, and the water flow speed is difficult to control, which can easily cause crabs to produce stress reaction and appear problems such as refusal to eat and molting failure; 3) inconvenient operation: traditional water level adjustment, cleaning and maintenance operations are cumbersome, and the bottom of the cleaning and maintenance operations needs to be emptied, which disturbs the crabs and is inefficient, increasing the labor intensity of the breeding personnel; 4) low space utilization: most breeding devices are independent monomer structures without adaptive stacking or combination design, and large-scale breeding requires a large amount of planar space, which is high in site cost. SUMMARY

[0003] To solve at least one of the above technical problems, the present application provides a breeding device, a breeding method and a breeding system, and the technical solutions adopted are as follows.

[0004] The breeding device provided by the present application comprises: a box body, the top of the box body has an open mouth, and the box body is used for containing water and breeding target animals; a tide simulation structure, the tide simulation structure is arranged in the interior of the box body, and the tide simulation structure can adjust the water level height in the box body by moving relative to the inner wall of the box body or changing its own form to simulate tides.

[0005] In some embodiments of the present application, the tide simulation structure comprises a partition structure, the partition structure is used for dividing the space in the box body into a first chamber and a second chamber, the first chamber is used for containing water, and the partition structure can change the volume of the first chamber by moving relative to the inner wall of the box body, and the partition structure can simulate tides by changing the water level height of the first chamber under a preset volume of water.

[0006] In some embodiments of the present application, the separation structure comprises a hinged plate and a waterproof film, one end of the hinged plate is hinged to the bottom of the box body, the hinged plate can rotate around the hinge shaft, the end of the hinged plate away from the hinge shaft is connected with the waterproof film, and the waterproof film is also connected to the inner wall of the box body; a sealing structure is arranged between the hinged plate and the side wall of the box body in the direction of the hinge shaft.

[0007] In some embodiments of the present application, the bottom of the box body is provided with an inclined surface, the inclined surface is guided from at least one non-bottom inner wall of the box body to the bottom of the box body, the inclined surface is connected with the bottom of the box body, and the end of the inclined surface close to the bottom of the box body is the low end of the inclined surface.

[0008] In some embodiments of the present application, the inner wall of the box body is provided with a drainage hole corresponding to the low end of the inclined surface.

[0009] In some embodiments of the present application, the drainage hole is communicated with a drainage pipeline; the top edge of the box body is provided with a groove structure; and the groove structure of the box body can accommodate the drainage pipeline outside the bottom of another box body.

[0010] In some embodiments of the present application, the top edge of the box body is provided with a second groove structure for placing a lighting structure.

[0011] In some embodiments of the present application, the box body is provided with a universal duckbill structure for delivering water to the inside of the box body.

[0012] The present application also provides a breeding method using the breeding device as described above, comprising: providing light to the inside of the box body, adjusting the light intensity, spectrum, and duration of the light, wherein: preset ebb tide period, input water into the box body to reach a first preset height, set a first preset light intensity, the spectrum is a mixed light of part white light and part blue light, and the duration is a first preset time, to simulate the preset ebb tide period; preset flood tide period, adjust the water level in the box body to a second preset height through the tide simulation structure, set a second preset light intensity, the spectrum is white light, and the duration is a second preset time, to simulate the preset flood tide period; preset ebb tide period, input water into the box body to reach a first preset height, set a first preset light intensity, the spectrum is a mixed light of part white light and part blue light, and the duration is a first preset time, to simulate the preset ebb tide period; wherein the second preset light intensity is greater than the first preset light intensity, and the first preset light intensity is greater than the third preset light intensity.

[0013] This application also provides a breeding system, including the breeding apparatus as described above.

[0014] This application has at least the following beneficial effects: the open design at the top of the box ensures full contact between the water and air, increasing dissolved oxygen content; when the tidal simulation structure adjusts the water level through movement or morphological changes, it can drive the water in the box to form a gentle flow, promoting water circulation; the tidal simulation structure inside the box acts directly on the water through relative movement to the inner wall or its own morphological changes, without relying on the impact-type regulation of traditional water inflow and outflow, effectively avoiding the stimulation of crabs by water flow disturbance and reducing stress responses such as refusal to feed and failure to molt; at the same time, the movement of the tidal simulation structure is controllable and can flexibly adapt to the water level requirements of crabs from different growth stages from larvae to adults, providing crabs with a stable and suitable habitat water level environment.

[0015] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0016] The present application will be further illustrated below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application.

[0017] Figure 1 This is a schematic diagram of a breeding device in one embodiment of this application; Figure 2 This is a top view of a breeding device in one embodiment of this application; Figure 3 This is a front view schematic diagram of an aquaculture device in one embodiment of this application; Figure 4 This is a schematic side cross-sectional view of a breeding device in one embodiment of this application; Figure 5 This is a schematic diagram of the universal duckbill structure in one embodiment of this application. Figure 6 This is a partial schematic diagram of the aquaculture system in one embodiment of this application.

[0018] Reference numerals: Box body 100; Drainage hole 110; Cover plate 120; Vent hole 121; Locking structure 122; First groove structure 130; Second groove structure 140; Third groove structure 150; Tidal simulation structure 200; hinged plate 210; Inclined structure 300; water inlet pipe 400; universal duckbill structure 410; lighting structure 500; drainage pipe 600. Detailed Implementation

[0019] The following is combined with Figures 1 to 6 The embodiments of this application are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "center", "middle", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] The following description uses farmed crabs as an example to illustrate the farming apparatus, farming method, and farming system of this application. The target animal is the crab.

[0025] Combination Figure 1 , Figure 2 , Figure 4 As shown, the aquaculture apparatus provided in this application includes: The box 100 has an open top and is used to hold water and raise target animals. The tidal simulation structure 200 is located inside the box 100. The tidal simulation structure 200 can move relative to the inner wall of the box 100 or adjust the water level inside the box 100 by changing its own shape.

[0026] The box 100 is made of PVC and has a rectangular structure with a rectangular bottom. It has three vertical sidewalls and one sloping sidewall. The inner wall is smooth, and the outer wall has reinforcing ribs to increase structural strength. Each box 100 houses only one crab, physically isolating it to prevent cannibalism. The top of the box 100 is open for placing the crab, introducing water, aerating the water, feeding the crab, and observing its rearing status.

[0027] The tide simulation structure 200 is disposed inside the box 100. The tide simulation structure 200 can compress water and raise the water level by changing the position of its structural components relative to the inner wall of the box 100. The tide simulation structure 200 can also compress water and raise the water level by changing its own shape or form, such as by air pressure driving the elastic element to deform. By adjusting the water level inside the box 100 through the tide simulation structure 200, simulated tidal changes in water level can be achieved.

[0028] When using the aquaculture device provided in this application, it contains crabs and water. When the water level needs to be raised, the tidal simulation structure 200 compresses the water, causing the water level to rise. When the water level needs to be lowered, the tidal simulation structure 200 lowers the water level in the opposite manner. This application simulates the natural tidal environment through water level adjustment, adapting to the habitat and growth needs of crabs. This application can achieve a smooth and controllable water level, adapting to the needs of different growth stages of crabs. It has a simple structure and is easy to maintain, solving the problems of large impacts, poor adaptability, and complex structures in traditional water level adjustment devices.

[0029] The open top design of the box 100 ensures full contact between water and air, increasing dissolved oxygen content. The tidal simulation structure 200 regulates water level through movement or shape changes, promoting water circulation. The tidal simulation structure inside the box 100 acts directly on the water through relative movement to the inner wall or its own shape changes, without relying on the impact-type regulation of traditional water inflow and outflow. This effectively avoids the stimulation of crabs by water flow disturbance, reducing stress responses such as refusal to feed and failure to molt. At the same time, the movement of the tidal simulation structure 200 is controllable, which can flexibly adapt to the water level requirements of crabs from different growth stages from larvae to adults, providing crabs with a stable and suitable habitat water level environment.

[0030] Specifically, based on natural tide tables of different regions and times, the action parameters of the tide simulation structure 200 can be matched to the water level variation patterns of the target tidal environment. For example, by referencing the rise and fall of natural tide tables and the timing of high tide, the tide simulation structure 200 can achieve the water level rise within the box 100, simultaneously matching the natural high tide time, ensuring that the water level rise within the box 100 is synchronized with the natural high tide time. This application features a simple structure, easy water level adjustment, and compatibility with tide tables. The device can flexibly adapt to different natural tidal environments, enhancing the naturalness and adaptability of the aquaculture environment, providing crabs with growth conditions more closely aligned with their native habitat, reducing stress responses, and improving survival rates.

[0031] Specifically, the tidal simulation structure 200 includes a partition structure that divides the space within the box 100 into a first chamber and a second chamber. The first chamber is used to hold water. The partition structure can move relative to the inner wall of the box 100 to change the volume of the first chamber. The partition structure can simulate tides by changing the water level in the first chamber within a preset volume of water. The partition structure separates the regulation space from the aquaculture space, improving aquaculture safety. The partition structure is located inside the box 100. The first chamber is used for crab farming and to hold water. By changing the position of the partition structure relative to the box 100, the volume of the first chamber is changed, thereby changing the water level within the first chamber. During the process of changing the position of the partition structure, its position changes slowly, simulating the gradual change in tidal water level, achieving smooth and controllable tidal simulation with stronger natural resemblance, and improving the survival rate of crab farming.

[0032] Specifically, the partition structure includes a hinge plate 210 and a waterproof membrane. One end of the hinge plate 210 is hinged to the bottom of the box 100. The hinge plate 210 can rotate around the hinge axis. The end of the hinge plate 210 away from the hinge axis is connected to the waterproof membrane, which is also connected to the inner wall of the box 100. A sealing structure is provided between the hinge plate 210 and the side wall of the box 100 in the direction of the hinge axis.

[0033] The hinge plate 210 is a rectangular plate made of the same material as the box body 100. The hinge plate 210 is hinged to the bottom of the box body 100 via a hinge axis. The two edges of the hinge plate 210 along the hinge axis contact or seal against the inner wall of the box body 100. When water level adjustment is not required, the hinge plate 210 is parallel to the bottom of the box body 100. When the water level needs to be raised, the hinge plate 210 rotates around the hinge axis away from the bottom of the box body 100, and the upper surface of the hinge plate 210 compresses the water, causing the water level to rise. When the water level needs to be lowered, the hinge plate 210 rotates around the hinge axis in the opposite direction of its original rotation, towards the bottom of the box body 100, causing the water level to drop.

[0034] One end of the hinge plate 210 is hinged to the bottom of the box 100, making the structure simpler and easier to implement. The hinged connection ensures a smooth and unobstructed adjustment process, and the rotation angle is controllable, further improving the accuracy of water level adjustment. The material is the same as that of the box 100, and it has strong corrosion resistance.

[0035] Specifically, the angle between the hinge plate 210 and the bottom of the housing 100 can be adjusted automatically or manually. The hinge plate 210 can be rotated by connecting a rotary drive motor to the hinge shaft, or the hinge plate 210 can be ball-hung with the output end of the linear drive electrode.

[0036] Furthermore, the end of the hinge plate 210 furthest from the hinge axis is connected to a waterproof membrane, which is also connected to the inner wall of the box 100. The side of the hinge plate 210 furthest from the hinge axis is connected to the inner wall of the box 100 via the waterproof membrane, preventing crabs from falling into the second chamber. The height of this side of the hinge plate 210 relative to the bottom of the box 100 is higher than the water level, ensuring the effectiveness and stability of water level adjustment. A sealing structure is provided between the hinge plate 210 and the side wall of the box 100 in the direction of the hinge axis. The sealing structure is a rubber structure, with rubber structures on both edges of the hinge plate 210 along the hinge axis contacting the inner wall of the box 100. Simultaneously, the sealing structure is simple, does not affect the rotational flexibility of the hinge plate 210, and solves the technical problem of easy leakage in hinged tidal simulation structures.

[0037] In some embodiments, the bottom of the box body 100 is provided with an inclined surface, which extends from at least one non-bottom inner wall of the box body 100 to the bottom of the box body 100. The inclined surface is connected to the bottom of the box body 100, and the end of the inclined surface near the bottom of the box body 100 is the lower end of the inclined surface. The bottom of the box body 100 is provided with an inclined structure 300, and the inclined surface is disposed on the side of the inclined structure 300 that is in contact with water. The inclined structure 300 extends from at least one non-bottom inner wall of the box body 100 to the bottom of the box body 100. The inclined structure 300 can be an inverted triangular prism structure, or a structure integrally formed with the box body 100 that slopes from at least one non-bottom inner wall of the box body 100 towards the bottom of the box body 100. The inclined surface can be a plane or an irregular curved surface. The end of the inclined structure 300 near the bottom of the box body 100 is the lower end. The sloping surface allows crabs to crawl and inhabit freely, enabling them to choose to climb onto the upper part to avoid prolonged submersion, while allowing them to remain submerged at the lower end of the slope. The angle of inclination can be adjusted according to the size of the farmed crabs. The sloping surface forms a unidirectional confluence channel, where uneaten feed, feces, and other waste generated during the farming process collects along the slope towards the lower end of the sloping surface under the influence of gravity or water flow, resulting in directional drainage.

[0038] Furthermore, when the water level is adjusted using the tidal simulation structure 200, the inclined slope guides the water to slowly rise or fall along the slope, avoiding direct impact and the formation of eddies within the box 100. When the water level is raised using the tidal simulation structure 200, the water on the inclined slope spreads evenly upwards at a slow and controllable rate; when the water level is lowered, the water slowly recedes along the slope, simulating tidal water level changes and reducing the stress on crabs caused by water flow disturbance. The inclined structure 300 adapts to the natural habits of crabs, enhancing their habitat comfort.

[0039] In some embodiments, the inner wall of the housing 100 is provided with a drain hole 110, which corresponds to the lower end of the inclined structure 300. At the bottom of the housing 100, a drain channel is reserved between the lower end of the inclined structure 300 and the hinge shaft. The drain hole 110 is provided on the drain channel and / or on the vertical side wall of the housing 100 corresponding to the drain channel. The drain hole 110 corresponds to the lower end of the inclined structure 300, which facilitates the collection of dirt in the drain hole 110 and its discharge from the drain hole 110, thereby improving the sewage discharge efficiency.

[0040] The top edge of the box 100 has a groove structure.

[0041] Combination Figure 4 , Figure 5As shown, in some embodiments, the box body 100 is provided with a universal duckbill structure 410, which is used to deliver water into the box body 100. The aquaculture device has a water inlet pipe 400, and a first groove structure 130 is provided on the top edge of the box body 100 for accommodating the water inlet pipe 400. The universal duckbill structure 410 is connected to the water inlet pipe 400, and the water inlet pipe 400 delivers water into the box body 100 through the universal duckbill structure 410.

[0042] Crabs are prone to stress responses to strong, unidirectional water flow, exhibiting behaviors such as foot retraction and avoidance, while diffused, slow-moving water flow promotes their normal activity. The omnidirectional duckbill structure 410 can achieve multi-directional water scattering by changing the outlet angle and flow velocity, preventing direct impact on the crab's body. Therefore, the omnidirectional duckbill structure 410 is installed at the inlet of the box 100 to control the water flow direction and prevent direct impact on the shrimp and crabs. The omnidirectional duckbill structure 410 has a quick-connect inlet, and its installation does not affect the flow rate of the circulating water system. The water flow coverage must ensure uniform water exchange within the box, with no dead zones. The omnidirectional duckbill structure 410 is installed on the upper side wall of the box 100, and its outlet direction can be flexibly adjusted to prevent direct impact on the crabs; the duckbill-shaped outlet design causes the water to spray out in a diffused manner, resulting in a gentle and wide-coverage flow that ensures uniform water renewal within the box while maintaining water level stability.

[0043] The top edge of the box 100 is also provided with a second recessed structure 140, which is used to place the lighting structure 500. The lighting structure 500 can be a light tube to provide light for the crabs.

[0044] Combination Figure 4 , Figure 6 As shown, in some embodiments, the drain hole 110 is connected to the drain pipe 600; the top edge of the box 100 is provided with a groove structure; the groove structure of the box 100 can accommodate the drain pipe 600 on the bottom outer side of another box 100. When multiple boxes 100 are stacked, the groove structure of the box 100 can accommodate the drain pipe 600 of the box 100 stacked above it. The top edge of the box 100 is also provided with a third groove structure 150, which can accommodate the drain pipe 600 of the box 100 stacked above it. The drain pipe 600 extends along the outer wall of the box 100, without occupying the internal breeding space of the box 100. The design of the third groove structure 150 allows multiple boxes 100 to be stacked stably, making full use of vertical space and adapting to the space optimization needs of large-scale breeding; when stacked, the drain pipe 600 is embedded in the third groove structure 150, ensuring the flatness of the stack, making the stacking simple and stable, and achieving high space utilization.

[0045] The groove structure is adapted to the outer diameter of the pipe and has a U-shaped structure.

[0046] Each housing 100 has an individual flow regulating valve on its corresponding inlet pipe 400, enabling independent control of water flow in each housing. The drain pipe 600 connects to an external circulation system, which filters and treats the substances in the drain pipe 600 before supplying water to the housing 100 through the inlet pipe 400, thus achieving water circulation and conserving resources.

[0047] Combination Figure 3 , Figure 4 As shown, in some embodiments, a cover plate 120 is provided on the side wall of the box 100, and the cover plate 120 and the side wall of the box 100 together form an opening; the cover plate 120 is hinged to the side wall of the box 100, and the cover plate 120 can be flipped outward of the box 100. The cover plate 120 is made of transparent acrylic and is rectangular in shape. The cover plate 120 can be flipped outward of the box 100, and can be rotated 0~90° relative to the side wall of the box 100, making it easy to observe the inside of the box 100. The cover plate 120 is provided with ventilation holes 121, which helps to maintain air circulation inside and outside the box 100 when the cover plate 120 is closed, increases dissolved oxygen, and has good breathability. The cover plate 120 is provided with an unlockable locking structure 122, which is used to lock the cover plate 120 to the box 100, ensuring a stable connection and preventing crabs from escaping. Specifically, the locking structure 122 is provided on both sides of the cover plate 120 along its length. The locking structure 122 includes a buckle and a buckle-type locking hole. The buckle-type locking hole is provided on the side wall of the box body 100. The cover plate 120 is locked or opened in the box body 100 by the cooperation of the buckle and the buckle-type locking hole.

[0048] This application also provides a breeding method using the breeding apparatus as described above, including: Light is supplied to the interior of the housing 100, and the intensity, spectrum, and duration of the light are adjusted, wherein: During the preset low tide period, water is introduced into the box 100 until the water level reaches the first preset height. The first preset light intensity is set, and the spectrum is a mixture of white light and blue light. This is continued for the first preset time to simulate the preset low tide period. The preset high tide period is simulated by adjusting the water level in the box 100 to a second preset height through the tide simulation structure, setting a second preset light intensity with white light as the spectrum, and continuing for a second preset time. The water level is lowered by a tidal simulation structure during the preset low tide period. A third preset light intensity is set with blue light as the spectrum, and the light intensity is maintained for a third preset time to simulate the preset low tide period. The second preset light intensity is greater than the first preset light intensity, and the first preset light intensity is greater than the third preset light intensity.

[0049] Light is supplied to the interior of the housing 100 through the lighting structure 500. The lighting structure 500 is electrically connected to an external control system, which stores lighting parameters and water level parameters. During the preset low tide period, the hinge plate 210 is fixed at an angle to the bottom of the housing 100, and water is introduced into the housing 100 through the water inlet pipe 400 to raise the water level to a first preset height, such as half the height of the vertical side wall of the housing 100. At the same time, the control system controls the lighting structure 500 to output a first preset light intensity, such as 1000 lux, with a spectrum of 90% white light and 10% blue light mixed light, for a first preset time to simulate the preset low tide period. During the preset high tide period, the control system slowly rotates the hinge plate 210 around the hinge axis away from the bottom of the box 100, gradually adjusting the water level inside the box 100 to a second preset height, such as two-thirds of the height of the vertical sidewall of the box 100. A second preset light intensity, such as 2000 lux, with white light spectrum, is output for a second preset time to simulate the preset high tide period. During the preset low tide period, the control system slowly rotates the hinge plate 210 around the hinge axis in the opposite direction of the original high tide rotation, closer to the bottom of the box 100, gradually adjusting the water level inside the box 100 to a third preset height, such as one-fifth of the height of the vertical sidewall of the box 100. A third preset light intensity, such as 500 lux, with blue light spectrum, is output for a third preset time to simulate the preset low tide period. After the low tide period ends, the box enters a slack tide period, followed by a high tide period, forming a periodic aquaculture cycle.

[0050] The light and water level parameters gradually change between different stages to allow the crabs to adapt to the environmental changes.

[0051] Specifically, the preset height, preset light intensity, and preset time are determined based on the daily tide table of the selected location.

[0052] By simulating the tidal environment in which crabs naturally inhabit through the cyclical alternation of slack tide, high tide, and low tide, water level and light parameters are coordinated. White light promotes the feeding and growth of the target animals, while blue light reduces stress response. The mixed light is adapted to their daily habitat needs. The light intensity and water level are accurately matched at different stages to further improve the survival rate and growth efficiency of the crabs.

[0053] This application also provides an aquaculture system, including the aquaculture devices as described above. The aquaculture system is equipped with a circulation system and a control system. Multiple aquaculture devices are arranged in combination to meet the needs of large-scale aquaculture. The design of the circulation system enables centralized water supply and centralized wastewater treatment, reducing operation and maintenance costs. The unified control system enables synchronous adjustment of all devices, ensuring consistency of the aquaculture environment and solving the problems of cumbersome management and large environmental differences in traditional decentralized aquaculture.

[0054] In one specific embodiment, the dimensions of the box body 100 are 60±0.5cm in length, 50±0.5cm in width, and 30±0.5cm in height, with an average thickness of 4±0.5mm and an effective internal volume of approximately 80L. Four supporting feet, each 20cm high, are provided at the bottom of the outer side wall of the box body 100. The drain hole 110 has a diameter of 30cm; the radius of curvature of the U-shaped structure in the groove structure is 50mm; the width of the cover plate 120 is the same as the width of the box body 100, and the cover plate 120 also has a vent hole 121 with a diameter of 50mm, and a snap-fit ​​locking hole with a diameter of 30mm. The outer diameter of the water inlet pipe 400 is 50mm; the outlet end of the water inlet pipe 400 is provided with a quick-connect interface with a diameter of 32mm, and the interface is fitted with a universal duckbill structure 410. The outer diameter of the drain pipe 600 is 50mm.

[0055] The universal duckbill structure 410 has an outer diameter of 32mm and includes a sealing ring groove. The interface section features a nitrile rubber O-ring with a diameter of 32mm and a wire diameter of 2mm, ensuring no leakage under 0.2MPa water pressure. Its output end connects to the pipe section via a stainless steel ball joint, supporting 30° vertical and 45° horizontal rotation, and is securely locked. The flat duckbill shape has a major axis of 30mm and a minor axis of 8mm, with three spiral guide lines on the inner wall, 1mm deep and with a pitch of 10mm, dispersing the water flow into a 60° fan-shaped area. The overall weight of the universal duckbill structure 410 is less than or equal to 150g, preventing deformation of the quick-connect interface under long-term load. Daily checks should be performed to ensure the duckbill rotation joint is secure and the flow rate is stable. Weekly disassembly of the duckbill outlet section should be performed, and the guide lines should be flushed with a high-pressure water gun to prevent algae blockage. The sealing ring should be replaced every 6 months.

[0056] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application. Furthermore, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

Claims

1. A breeding device, characterized in that, include: A box body having an open top, the box body being used to hold water and for raising target animals; A tide simulation structure is disposed inside the box. The tide simulation structure can move relative to the inner wall of the box or adjust the water level inside the box by changing its own shape to simulate tides.

2. The aquaculture device according to claim 1, characterized in that: The tidal simulation structure includes a partition structure for dividing the space inside the box into a first chamber and a second chamber. The first chamber is used to contain water. The partition structure can move relative to the inner wall of the box to change the volume of the first chamber. The partition structure can simulate tides by changing the water level in the first chamber under a preset volume of water.

3. The aquaculture device according to claim 2, characterized in that: The partition structure includes a hinge plate and a waterproof membrane. One end of the hinge plate is hinged to the bottom of the box body. The hinge plate is rotatable around the hinge axis. The end of the hinge plate away from the hinge axis is connected to the waterproof membrane. The waterproof membrane is also connected to the inner wall of the box body. A sealing structure is provided between the hinge plate and the side wall of the box body in the direction of the hinge axis.

4. The aquaculture device according to claim 1, characterized in that: The bottom of the box is provided with an inclined surface, which extends from at least one non-bottom inner wall of the box to the bottom of the box. The inclined surface is connected to the bottom of the box, and the end of the inclined surface near the bottom of the box is the lower end of the inclined surface.

5. The aquaculture device according to claim 4, characterized in that: The inner wall of the box is provided with a drainage hole, which corresponds to the lower end of the inclined surface.

6. The aquaculture device according to claim 5, characterized in that: The drain hole is connected to the drain pipe; the top edge of the box is provided with a groove structure; the groove structure of the box can accommodate the drain pipe on the bottom outer side of another box.

7. The aquaculture device according to claim 1, characterized in that: The top edge of the box is provided with a second groove structure, which is used to place the lighting structure.

8. The aquaculture device according to claim 1, characterized in that: The box is equipped with a universal duckbill structure, which is used to deliver water into the box.

9. A method of aquaculture, characterized in that, Using the aquaculture apparatus as described in any one of claims 1 to 8, comprising: Light is supplied to the interior of the housing, and the intensity, spectrum, and duration of the light are adjusted, wherein: During the preset low tide period, water is introduced into the box until the water level reaches a first preset height. A first preset light intensity is set, and the spectrum is a mixture of white light and blue light for a first preset time to simulate the preset low tide period. During the preset high tide period, the water level inside the box is adjusted to a second preset height through the tidal simulation structure, a second preset light intensity is set, the spectrum is white light, and the duration is a second preset time to simulate the preset high tide period. The preset low tide period is simulated by lowering the water level through the tidal simulation structure, setting a third preset light intensity with blue light spectrum, and continuing for a third preset time. Wherein, the second preset light intensity is greater than the first preset light intensity, and the first preset light intensity is greater than the third preset light intensity.

10. A farming system, characterized in that, Includes the aquaculture apparatus as described in any one of claims 1 to 8.