Assembled net cage for breeding of archachatina
Patent Information
- Application Number
- CN202522206715.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-20
AI Technical Summary
Existing snail farming cages make it difficult to efficiently screen immature small snails during harvest, resulting in a cumbersome harvesting process and reduced efficiency.
An assembled net cage was designed, including a first net bag and a second net bag. The mesh size of the first net bag is smaller than that of the second net bag. The cage is composed of a positioning rod and an installation rod to form a double-layer structure. The first net bag is used to enclose mature large individuals of the snail, and the second net bag is used to screen out mud and sand and immature small individuals of the snail.
This technology enables convenient screening of mature whelks and immature small individuals during harvest, improving harvesting efficiency and meeting the needs of whelk farming.
Smart Images

Figure CN224924427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, specifically to an assembled net cage for the cultivation of conch. Background Technology
[0002] Net cages are crucial facilities for high-density aquaculture of *Bambusa multiplex* (a type of whelk). Using net cages in conjunction with sandy-bottom farming methods, the cages are secured to the pond using poles, placing the whelks in a controlled environment for zoned farming. This prevents predators and escape, and facilitates feeding and observation, making it an indispensable infrastructure for high-yield *Bambusa multiplex* aquaculture. During harvest, the net cages are removed from the pond. During this process, the mud and sand pass through the mesh and remain in the pond, while the whelks move upwards with the cages and detach from the mud and sand. However, some immature small whelks are also removed during harvest. These immature whelks need to be sifted out and returned to the pond with the net cages. This sifting process is cumbersome and inconvenient, indicating that current net cage systems still do not fully meet the needs of aquaculture farmers. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing an assembled net cage for the cultivation of *Cyprinus edulis*, thereby solving the problems described above.
[0004] This utility model provides an assembled net cage for the cultivation of conch, including a first net bag and a second net bag. The second net bag is placed inside the first net bag, and the mesh size of the first net bag is smaller than that of the second net bag. The upper end of the first net bag is provided with several connecting blocks, and each connecting block can be detachably installed with a positioning rod. Several positioning rods are inserted into the bottom of the pool to open the first net bag. The upper end of the second net bag is provided with several mounting rods, and the connecting blocks are detachably connected to the mounting rods.
[0005] Preferably, the positioning rod includes an insertion rod, a main rod body, and at least one support rod. The insertion rod is used to insert into the bottom of the pool. The upper end of the insertion rod is spliced with the main rod body or the support rod. The main rod body is spliced with at least one of the support rods.
[0006] Furthermore, both ends of the main rod and both ends of the support rod are respectively provided with screws and screw holes, and the upper end of the insertion rod is provided with the screw or the screw hole. The screw is used to connect with the screw hole in a threaded manner, thereby splicing the insertion rod, the main rod and at least one support rod in a threaded connection to form the positioning rod.
[0007] Furthermore, the connecting block is provided with an installation ring, the upper end of the main rod is provided with an annular platform for the installation ring to fit on and a first abutting part for the installation ring to abut on, the support rod is provided with a second abutting part, the support rod is spliced with the upper end of the main rod and the installation ring is pressed onto the first abutting part through the second abutting part.
[0008] Preferably, the bottom of the insertion rod has a conical structure.
[0009] Preferably, the connecting block is provided with a mounting cylinder for the mounting rod to be inserted into.
[0010] Furthermore, each of the mounting rods is provided with a pull ring.
[0011] Preferably, the top of both the first net and the top of the second net are rectangular when unfolded.
[0012] Furthermore, there are four connecting blocks, which are located at the four apex corners of the top of the first net bag. The number of mounting rods is also four, and the four mounting rods are located at the four apex corners of the top of the second net bag.
[0013] Preferably, both the first net bag and the second net bag are made of polyethylene with good corrosion resistance.
[0014] Compared with the prior art, the present invention has the following advantages: Several connecting blocks at the top of the first net are installed on various positioning rods, and all positioning rods are inserted into the water tank to place the first net in the tank. Then, the second net is placed inside the first net and connected to the corresponding connecting blocks by several mounting rods, forming a net cage with a double-layer net structure. The first net can simultaneously enclose mature large snails and immature small snails for zoned cultivation, providing protection and facilitating feeding. On this basis, the second net can be removed as needed to extract the mature snails. The mud and sand at the bottom of the tank and the immature small snails pass through the mesh of the second net and remain in the tank, providing a certain screening function to meet the needs of snail harvesting. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a structural diagram of the connecting block and the positioning rod in a certain embodiment of the present invention, wherein the positioning rod is composed of an insert rod, a main rod body and a single support rod; Figure 3 This is a structural diagram of the connecting block and positioning rod in a certain embodiment of the present invention, wherein the positioning rod consists of an insert rod, a main rod body and two support rods.
[0017] In the diagram, 1-first net bag; 2-second net bag; 3-connecting block; 31-installation ring; 32-installation cylinder; 4-positioning rod; 41-insertion rod; 42-main rod body; 421-ring platform; 422-first abutment part; 43-support rod; 431-second abutment part; 5-installation rod; 51-pull ring; 6-screw; 7-screw hole. Detailed Implementation
[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in this specification of this utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.
[0019] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0020] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a 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 communication between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0021] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.
[0022] Example 1: Reference Figures 1 to 3 This utility model provides an assembled net cage for the cultivation of conch, including a first net bag 1 and a second net bag 2. The second net bag 2 is placed inside the first net bag 1, and the mesh size of the first net bag 1 is smaller than that of the second net bag 2. The upper end of the first net bag 1 is provided with several connecting blocks 3, and each connecting block 3 can be detachably installed with a positioning rod 4. The several positioning rods 4 are inserted into the bottom of the pool to open the first net bag 1. The upper end of the second net bag 2 is provided with several mounting rods 5, and the connecting blocks 3 and the mounting rods 5 are detachably connected.
[0023] Several connecting blocks 3 at the upper end of the first net bag 1 are installed on each positioning rod 4, and all positioning rods 4 are inserted into the water pool to place the first net bag 1 in the water pool. Then, the second net bag 2 is placed in the inner cavity of the first net bag 1 and connected to the corresponding connecting blocks 3 by several mounting rods 5, forming a net cage with a double-layer net bag structure. The first net bag 1 can simultaneously enclose mature large individuals and immature small individuals of the East Wind Snail for zoned breeding, which plays a role in protection and facilitates feeding. On this basis, the second net bag 2 can be removed and taken out as needed, so that the mature East Wind Snails can be taken out. The mud and sand at the bottom of the pool and the immature small individuals of the East Wind Snails pass through the mesh of the second net bag 2 and remain in the water pool, which has a certain screening function and meets the needs of harvesting East Wind Snails.
[0024] Example 2: Reference Figures 1 to 3 In conjunction with the technical solution of Embodiment 1, in this embodiment, the positioning rod 4 includes an insertion rod 41, a main rod body 42 and at least one support rod 43. The insertion rod 41 is used to insert into the bottom of the pool. The upper end of the insertion rod 41 is spliced with the main rod body 42 or the support rod 43. The main rod body 42 is spliced with at least one support rod 43.
[0025] A fixing rod is formed by splicing together a plug 41, a main rod 42, and at least one support rod 43. The plug 41 is inserted into the bottom of the pool to secure the entire fixing rod, and a specified number of support rods 43 can be selected to splice together to form a fixing rod of a specified length as needed. For example: In Figure 1 and Figure 2 In the middle, the positioning rod 4 is composed of the insertion rod 41, the main rod body 42, and a single support rod 43; in Figure 3 The positioning rod 4 is composed of a plug rod 41, a main rod body 42, and two support rods 43.
[0026] Specifically, both ends of the main rod 42 and both ends of the support rod 43 are respectively provided with screws 6 and screw holes 7. The upper end of the insertion rod 41 is provided with a screw 6 or a screw hole 7. The screw 6 is used to connect with the screw hole 7 by thread, thereby splicing the insertion rod 41, the main rod 42 and at least one support rod 43 to form the positioning rod 4 by threaded connection. In this embodiment, the detachable connection between the insertion rod 41, the main rod 42 and at least one support rod 43 can be achieved by using screws 6 and threads to form a threaded connection.
[0027] Specifically, the connecting block 3 is provided with an installation ring 31, the upper end of the main rod 42 is provided with an annular platform 421 for the installation ring 31 to fit into and a first abutting part 422 for the installation ring 31 to abut against, the support rod 43 is provided with a second abutting part 431, the support rod 43 is spliced with the upper end of the main rod 42 and the installation ring 31 is pressed against the first abutting part 422 through the second abutting part 431.
[0028] By fitting the mounting ring 31 onto the annular platform 421 and placing it on the first abutment part 422, and then connecting the support rod 43 to the main rod body 42 by means of a threaded connection, the second abutment part 431 on the support rod 43 presses the mounting ring 31 onto the first abutment part 422, thereby realizing the installation between the connecting block 3 and the positioning rod 4.
[0029] Specifically, the bottom of the insertion rod 41 has a conical structure. By setting the bottom of the insertion rod 41 to a conical structure, it is easier to insert the insertion rod 41 into the bottom of the pool, providing operational convenience.
[0030] Example 3: Reference Figures 1 to 3 In conjunction with the technical solutions of Embodiments 1 and 2, in this embodiment, the connecting block 3 is provided with an installation cylinder 32 for inserting the installation rod 5. By inserting the installation rod 5 on each of the first net bags 1 into the corresponding installation cylinder 32 on the connecting block 3, the installation of the first net bag 1 and the second net bag 2 can be achieved. The first net bag 1 can be removed from the second net bag 2 by removing each installation rod 5 from the corresponding installation cylinder 32.
[0031] Specifically, each mounting rod 5 is equipped with a pull ring 51. By providing pull rings 51 on the mounting rod 5, fingers can be inserted into the pull rings 51 to pull the mounting rod 5 out of the mounting cylinder 32, providing operational convenience.
[0032] Example 4: Reference Figures 1 to 3 In conjunction with the technical solutions of embodiments 1-3, in this embodiment, the top of the first net bag 1 and the top of the second net bag 2 are both rectangular after unfolding.
[0033] Specifically, there are four connecting blocks 3, which are located at the four apex corners of the top of the first net bag 1. There are also four mounting rods 5, which are located at the four top corners of the second net bag 2.
[0034] Correspondingly, there are also four positioning rods 4. The above structure can be used in conjunction with the positioning rods 4 to open and fix the four top corners of the first net bag 1 and the second net bag 2 in the pool, forming a net box structure with double net bags.
[0035] When it is necessary to remove the second net bag 2 for harvesting, first remove the two mounting rods 5 on the same side, hold the two mounting rods 5 and move them closer to the two mounting rods 5 that have not been removed. At this time, you can raise the two mounting rods 5 in your hand to lift one side of the second net bag 2 to observe the snail farming situation. You can then remove the remaining two mounting rods 5 to remove the entire second net bag 2 from the first net bag 1 and carry out the snail harvesting work.
[0036] In other embodiments, in addition to setting connecting blocks 3 and mounting rods 5 at the four apex corners of the first net bag 1 and the second net bag 2, connecting blocks 3 and mounting rods 5 can also be set on the sides of the first net bag 1 and the second net bag 2, and fixed by positioning rods 4, thereby improving the stability of the entire structure. For example, setting connecting blocks 3 and mounting rods 5 at the middle of the two longer sides of the rectangular first net bag 1 and the second net bag 2, and fixing them with positioning rods 4, is equivalent to using a six-set structure of positioning rods 4-connecting blocks 3-mounting rods 5 to support the first net bag 1 and the second net bag 2, thereby improving the stability of the structure.
[0037] In some embodiments, both the first net bag 1 and the second net bag 2 are made of polyethylene with good corrosion resistance.
[0038] The first net bag 1 and the second net bag 2 are made of polyethylene, which has good corrosion resistance. They are not easily corroded by pond water, effectively improving the service life of both net bags. The use of polyethylene to make fishing nets or net cages is well-known in the art and will not be elaborated upon here.
[0039] In some embodiments, the insert rod 41, main rod body 42, and support rod 43 that make up the positioning rod 4 can be made of polyethylene or fiberglass with good corrosion resistance, thereby improving their service life.
[0040] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.
Claims
1. A modular net cage for the cultivation of *Sinocyclocheilus edulis*, characterized in that, The device includes a first net and a second net. The second net is placed inside the first net, and the mesh size of the first net is smaller than that of the second net. The upper end of the first net has several connecting blocks, and each connecting block is detachably equipped with a positioning rod. The positioning rods are inserted into the bottom of the pool to open the first net. The upper end of the second net has several mounting rods, and the connecting blocks are detachably connected to the mounting rods.
2. The assembled net cage for aquaculture of *Cyprinus edulis* according to claim 1, characterized in that: The positioning rod includes an insert rod, a main rod body, and at least one support rod. The insert rod is used to insert into the bottom of the pool. The upper end of the insert rod is spliced with the main rod body or the support rod. The main rod body is spliced with at least one of the support rods.
3. The assembled net cage for aquaculture of *Sinocyclocheilus edulis* according to claim 2, characterized in that: Both ends of the main rod and both ends of the support rod are respectively provided with screws and screw holes. The upper end of the insertion rod is provided with the screw or the screw hole. The screw is used to connect with the screw hole in a threaded manner, thereby splicing the insertion rod, the main rod and at least one support rod into the positioning rod by means of threaded connection.
4. The assembled net cage for aquaculture of *Cyprinus edulis* according to claim 3, characterized in that: The connecting block is provided with an installation ring, the upper end of the main rod is provided with an annular platform for the installation ring to fit on and a first abutting part for the installation ring to abut on, the support rod is provided with a second abutting part, the support rod is spliced with the upper end of the main rod and the installation ring is pressed against the first abutting part through the second abutting part.
5. A modular net cage for aquaculture of *Cyprinus edulis* according to any one of claims 2-4, characterized in that: The bottom of the insertion rod has a conical structure.
6. A modular net cage for farming *Sinocyclocheilus edulis* according to any one of claims 1-4, characterized in that: The connecting block is provided with a mounting cylinder for the mounting rod to be inserted into.
7. The assembled net cage for aquaculture of *Cyprinus edulis* according to claim 6, characterized in that: Each of the mounting rods is equipped with a pull ring.
8. A modular net cage for aquaculture of *Cyprinus edulis* according to any one of claims 1-4, characterized in that: The top of both the first and second nets are rectangular when unfolded.
9. The assembled net cage for aquaculture of *Sinocyclocheilus edulis* according to claim 8, characterized in that: The number of connecting blocks is four, and the four connecting blocks are located at the four apex corners of the top of the first net bag; The number of mounting rods is also four, and the four mounting rods are located at the four apex corners of the top of the second net bag.
10. A modular net cage for aquaculture of *Cyprinus edulis* according to any one of claims 1-4, characterized in that: Both the first and second net bags are made of polyethylene, which has good corrosion resistance.
