A spatially adjustable crab farming device
By designing an adjustable crab farming device using polyethylene material and a tenon-and-mortise joint structure, the problem of low space utilization in crab farming devices was solved, enabling flexible and efficient crab farming and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO UNIV
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-02
AI Technical Summary
Existing crab farming facilities have low space utilization, low farming efficiency, and excessively high transportation and costs, making it difficult to meet the experimental needs of different sizes and quantities.
Design a space-adjustable crab farming device. The farming units are made of polyethylene and are assembled into a detachable hollow cube structure by mortise and tenon joints. The structure includes a base plate, side plates and guide blocks, which can be spliced and disassembled in various shapes to facilitate the accommodation of more and larger crabs.
It enables flexible space adjustment, improves breeding efficiency and space utilization, reduces transportation and repurchase costs, and is easy to disassemble, clean and reuse.
Smart Images
Figure CN224306586U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crab farming technology, and in particular to a space-adjustable crab farming device. Background Technology
[0002] Crabs are important aquaculture economic animals, prized for their delicious taste and rich nutrition, and highly sought after by consumers. However, due to their aggressive nature, high density in crab farming leads to high cannibalism rates, especially during intermolting periods when they are highly vulnerable to attacks from other crabs. Therefore, when conducting crab farming experiments, it is necessary to place appropriately sized farming units in the experimental pond. The size and number of farming units should be adjusted according to the experimental requirements and the size of the experimental pond to meet the experimental needs.
[0003] Due to the unique requirements of crab farming, conventional isolated farming systems suffer from low space utilization, low farming efficiency, relatively poor operability and controllability, and the farming process is subject to various limitations. Furthermore, the farming equipment faces difficulties in transportation and excessive costs. Therefore, developing space-adjustable crab farming facilities is an urgent problem to be solved. Utility Model Content
[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a space-adjustable crab farming device that can be adjusted according to farming needs in order to obtain a farming system that can accommodate more and larger experimental crabs.
[0005] An adjustable-space crab farming device is placed in a farming pond; the farming device includes at least two farming units; each farming unit includes:
[0006] Base plate; and
[0007] Two side plates I and two side plates II are inserted into the base plate using a mortise and tenon joint connection.
[0008] The base plate, two side plates I, and two side plates II are combined to form a hollow cube structure with the opening facing upwards. Each side plate II has a guide block fixedly connected to its corresponding side wall position, and a guide groove adapted to the guide block is opened on the side plate I. The side plate II is detachably installed between the two side plates I through the guide groove and the guide block.
[0009] As a further improvement to the above solution, the top of the aquaculture unit is exposed above the surface of the aquaculture tank, and the aquaculture unit is made of polyethylene.
[0010] As a further improvement to the above solution, the base plate has a perforated plate and a solid plate, and the perforated plate is located on the corresponding side of the solid plate. A number of holes are evenly and continuously opened on the perforated plate, and the diameter of the holes is mm.
[0011] As a further improvement to the above solution, several water passage holes are uniformly and through-holes on both side plate I and side plate II, and the diameter of the water passage holes is mm.
[0012] As a further improvement to the above scheme, the bottom plate, the two side plates I and the two side plates II form a crab-accommodating space. The two side plates I are distributed in parallel on the corresponding two sides of the crab-accommodating space, and the two side plates II are distributed in parallel on the corresponding other two sides of the crab-accommodating space.
[0013] As a further improvement to the above solution, the base plate is fixedly connected with tenons I on both adjacent side walls, and mortises I that are adapted to the tenons I are opened on the other two adjacent side walls.
[0014] As a further improvement to the above solution, tenons II are fixedly installed at the bottom of both side plate I and side plate II, and mortises II that are compatible with tenons II are provided on the bottom plate.
[0015] As a further improvement to the above scheme, adjacent tenon grooves II and tenon groove I are arranged alternately.
[0016] As a further improvement to the above solution, a tenon III is fixedly installed on the side wall corresponding to the side plate I, and a mortise III that matches the tenon III is opened on the other side wall corresponding to the side plate I.
[0017] As a further improvement to the above solution, the tenon III is located on one side of the guide groove.
[0018] Compared with the prior art, the beneficial effects of this utility model are: the aquaculture device can be adjusted according to the aquaculture needs to obtain an aquaculture system that can accommodate more and larger experimental crabs, and the device is easy to assemble and disassemble, making it convenient to disassemble, clean and store, and easy to reuse. Attached Figure Description
[0019] Figure 1 The diagram shown is a structural schematic of a space-adjustable crab farming device provided by this utility model.
[0020] Figure 2 As shown Figure 1 A structural diagram of a medium-sized aquaculture unit.
[0021] Figure 3 As shown Figure 2 Exploded view.
[0022] Explanation of main component symbols
[0023] 1. Base plate; 2. Side plate I; 3. Side plate II; 4. Tenon I; 5. Mortise I; 6. Tenon II; 7. Mortise II; 8. Guide groove; 9. Guide block; 10. Tenon III; 11. Mortise III.
[0024] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. Additional aspects and advantages of this utility model 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 the utility model. It should be understood that the following description is merely illustrative and not intended to limit the utility model.
[0026] The specific embodiments of this utility model are described in detail below.
[0027] Please see Figure 1-3 This embodiment provides a space-adjustable crab farming device, which is placed in a farming pond. The farming device includes two farming units. The top of the farming units protrudes above the water surface of the farming pond, and the farming units are made of polyethylene. Considering the corrosive effects of seawater on metal materials and the need for wear resistance during use, this embodiment uses farming units made of polyethylene to better adapt to assembly operations and the farming environment. Furthermore, in the actual design, the farming units are colored with a blue background, which has a relatively low impact on crabs.
[0028] This embodiment illustrates the process of assembling a culture device using two culture units. In other embodiments, depending on the actual scale of culture, a larger number of culture units can be used to assemble a culture system capable of accommodating more and larger experimental crabs. Correspondingly, when using a larger number of culture units, the shape of the culture device becomes more flexible and varied, such as being assembled into S-shapes, U-shapes, rings, squares, etc., to adapt to different sizes of culture environments; these details will not be elaborated upon here. Through the arrangement and combination of multiple culture units, the serial numbers of experimental individuals can be easily registered, facilitating the conduct of culture experiments and meeting the needs of various experimental variables related to crabs, such as density experiments, individual difference experiments, and nutritional culture experiments.
[0029] The aquaculture unit includes a base plate 1 and two side plates I2 and two side plates II3, which are mortised and tenoned onto the base plate 1. The base plate 1, side plates I2, and side plates II3 combine to form a hollow cube structure with the opening facing upwards. The base plate 1, side plates I2, and side plates II3 form a crab-accommodating space. The two side plates I2 are parallel to each other on opposite sides of the crab-accommodating space, and the two side plates II3 are parallel to each other on the other two sides of the crab-accommodating space.
[0030] The base plate 1 comprises a perforated plate and a solid plate, with the perforated plate located on the opposite side of the solid plate. The perforated plate has a plurality of evenly distributed holes, each with a diameter of 1 mm. In this embodiment, the solid plate is used to hold feed, while the perforated plate allows water to pass through, facilitating water exchange at the bottom of the aquaculture unit.
[0031] Both side plates I2 and II3 have several water passage holes evenly distributed throughout them, with a hole diameter of 1mm. In this embodiment, the water passage holes serve to facilitate water exchange on the sides of the aquaculture unit. Taking a 0.1g crab as an example, whose carapace is 7-8mm wide, multiple aquaculture units can be assembled to obtain crab aquaculture devices with different sizes of aquaculture space. This facilitates large-scale aquaculture experiments with experimental crabs ranging from 0.1g to 50g, achieving cost savings and overcoming the problem of repeatedly purchasing experimental devices of different sizes from the same brand due to size differences. In actual design, cameras can also be attached to the water passage holes for observation of the aquaculture experiment, which will not be elaborated here.
[0032] The base plate 1 has tenons I4 fixedly connected to its adjacent two side walls, and mortises I5 adapted to the tenons I4 are opened on its other two side walls. In this embodiment, based on the design of tenons I4 and mortises I5, it is convenient to assemble multiple breeding units. Taking the assembly of two breeding units as an example, specifically, the two base plates 1 are spliced in the x-axis direction or y-axis direction with the cooperation of tenons I4 and mortises I5.
[0033] Guide blocks 9 are fixedly connected to the corresponding two side walls of side plate II3, and guide grooves 8 adapted to the guide blocks 9 are opened on side plate I2. Side plate II3 is detachably installed between the two side plates I2 through the guide grooves 8 and guide blocks 9. In this embodiment, based on the design of guide blocks 9 and guide grooves 8, the middle side plate II3 can be disassembled as needed when assembling and using the two breeding units. At this time, the two crab holding spaces are connected to form a larger space, which is more flexible and applicable.
[0034] A tenon III10 is fixedly installed on one side wall of side plate I2, and a mortise III11 adapted to the tenon III10 is opened on the other side wall of side plate I2. In this embodiment, when two aquaculture units are assembled, the cooperation of the tenon III10 and the mortise III11 ensures a stable connection of side plate I2, improving the stability of the assembled structure in aquaculture water. The mortise III11 is located on one side of the guide channel 8. Based on this design, the splicing of side plate I2 in different aquaculture units does not affect the splicing of side plate II3 and side plate I2 in the same aquaculture unit.
[0035] Both side panels I2 and II3 have tenons II6 fixedly installed at their bottom edges, and the base plate 1 has mortises II7 that match the tenons II6. Adjacent mortises II7 and I5 are staggered. Based on this design, the splicing of base plates 1 in different breeding units does not affect the splicing of base plates 1 and side panels I2, or base plates 1 and side panels II3 in the same breeding unit.
[0036] The aquaculture unit provides crabs with a space to grow and also prevents them from escaping. The assembly process of the aquaculture unit in this embodiment is as follows: First, place two side plates I2 on the base plate 1, and press down on the side plates I2 until the tenon II6 is inserted into the mortise II7. Next, take side plate II3 and use the guide groove 8 and guide block 9 to push it between the two side plates I2 at a fixed point. When side plate II3 contacts the base plate 1, press down on side plate II3 until the tenon II6 is inserted into the mortise II7, completing the assembly and obtaining the aquaculture unit.
[0037] The aquaculture device of this embodiment is assembled as follows: with the cooperation of tenon I4 and mortise I5, the splicing between the bottom plates 1 in the two aquaculture units is realized; with the cooperation of tenon III10 and mortise III11, the splicing between the side plates I2 in the two aquaculture units is realized.
[0038] The aquaculture unit in this embodiment is easy to disassemble, wash, assemble, and store, and can be reused efficiently, providing convenience for conducting relevant quantitative research. In actual aquaculture experiments, matching evaluation methods can be used to provide feedback on the aquaculture experiments of experimental crabs, such as comparative studies of the correlation of crabs at various stages, or correlation studies of aquaculture experiments of various crabs at different stages. The aquaculture equipment required can be built more accurately according to different experimental requirements, which is conducive to the efficient conduct of aquaculture experiments.
[0039] In summary, the aquaculture device of this embodiment has the following advantages: it can be adjusted according to aquaculture needs to obtain an aquaculture system that can accommodate more and larger experimental crabs, and the device is easy to assemble and disassemble, making it convenient to disassemble, clean and store, and easy to reuse.
[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A space-adjustable crab farming device, placed in a farming pond; the farming device comprising at least two farming units; characterized in that, The aquaculture unit includes: Base plate (1); and Two side plates I (2) and two side plates II (3) are inserted into the base plate (1) by mortise and tenon joints; Among them, the base plate (1), two side plates I (2) and two side plates II (3) are combined to form a hollow cube structure with the opening facing upward; the side plates II (3) are fixedly connected to the corresponding two side walls, and the side plates I (2) are provided with guide grooves (8) that are compatible with the guide blocks (9). The side plates II (3) are detachably installed between the two side plates I (2) through the guide grooves (8) and the guide blocks (9).
2. The space-adjustable crab farming device according to claim 1, characterized in that, The top of the aquaculture unit is exposed above the surface of the aquaculture tank, and the aquaculture unit is made of polyethylene.
3. The space-adjustable crab farming device according to claim 1, characterized in that, The base plate (1) has a perforated plate and a solid plate, and the perforated plate is located on the opposite side of the solid plate. A number of holes are evenly and continuously opened on the perforated plate, and the hole diameter is 1mm.
4. The space-adjustable crab farming device according to claim 1, characterized in that, Both side plate I (2) and side plate II (3) are provided with several water passage holes that are evenly opened through them, and the diameter of the water passage holes is 1mm.
5. The space-adjustable crab farming device according to claim 1, characterized in that, The bottom plate (1), two side plates I (2) and two side plates II (3) form a crab-accommodating space. The two side plates I (2) are distributed in parallel on the corresponding two sides of the crab-accommodating space, and the two side plates II (3) are distributed in parallel on the corresponding other two sides of the crab-accommodating space.
6. The space-adjustable crab farming device according to claim 1, characterized in that, The base plate (1) is fixedly connected with tenons I (4) on both adjacent side walls, and mortises I (5) that are compatible with the tenons I (4) are opened on the other two adjacent side walls.
7. The space-adjustable crab farming device according to claim 6, characterized in that, Both side plate I (2) and side plate II (3) are fixedly installed with tenons II (6) at the bottom, and the bottom plate (1) is provided with mortise II (7) that matches the tenons II (6).
8. The space-adjustable crab farming device according to claim 7, characterized in that, The adjacent tenons II (7) and tenons I (5) are arranged alternately.
9. The space-adjustable crab farming device according to claim 1, characterized in that, The side plate I (2) is fixedly installed with a tenon III (10) on one side wall, and a mortise III (11) that matches the tenon III (10) is opened on the other side wall of the side plate I (2).
10. The space-adjustable crab farming device according to claim 9, characterized in that, The tenon III (11) is located on one side of the guide groove (8).