Rapid attachment and propagation expanding device for free filaments of porphyra haitanensis

By designing a rapid attachment and propagation device for free filaments of laver, the problem of uneven attachment of free filaments was solved, achieving efficient attachment and propagation and improving the economic benefits of laver.

CN224069405UActive Publication Date: 2026-04-03SHANTOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-23
Publication Date
2026-04-03

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Abstract

The utility model provides a porphyra haitanensis free filament rapid attachment propagation device which comprises a transparent incubator with an opening in the top. The number of the free filament fixing plates is multiple, the multiple free filament fixing plates are horizontally stacked in the transparent culture box, a certain gap exists between the free filament fixing plate located on the bottommost layer and the bottom face of the transparent culture box, and a certain gap exists between every two free filament fixing plates which are adjacent up and down; each free filament fixing plate is composed of a rectangular frame and a vinylon network cable winding structure connected with the rectangular frame; and the transparent cover plate covers the opening of the transparent incubator. The porphyra haitanensis filament culture device is simple in overall structure, low in use cost, large in porphyra haitanensis filament culture amount and high in space utilization rate, an efficient basic device is provided for attachment and multiplication culture of porphyra haitanensis free filaments, and economic benefits of porphyra haitanensis are remarkably improved.
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Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically to a device for the rapid attachment and propagation of free filamentous structures of *Porphyra yezoensis*. Background Technology

[0002] Porphyra yezoensis, a major species cultivated in southern my country, enjoys significant economic benefits. It exhibits two distinct generations: the thallus (gametophyte) and the filamentous stage (sporophyte), displaying a typical heteromorphic life cycle. After the mature thallus releases carpospores, these carpospores can penetrate the shell to form shell-like filaments. Once mature, these filaments release conchospores, which can germinate into thallus forms. Carpospores can also grow independently into filamentous forms in seawater, known as free filaments.

[0003] Current methods for cultivating *Porphyra yezoensis* primarily rely on the release of conchospores from the shell filaments. However, free filaments lack effective attachment substrates and remain in a free state for extended periods, resulting in low growth efficiency, uneven attachment, and ineffective spore release, thus failing to meet the needs of spore release research. Therefore, we propose a rapid attachment and propagation device for free filaments of *Porphyra yezoensis*. Utility Model Content

[0004] The purpose of this invention is to provide a device for the rapid attachment and propagation of free filamentous structures of laver, in order to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a device for rapid attachment and propagation of free filaments of *Porphyra yezoensis*, comprising: a transparent culture box with an open top; multiple free filament fixation plates, which are horizontally stacked inside the transparent culture box, with a certain gap between the bottom free filament fixation plate and the bottom surface of the transparent culture box, and between two adjacent free filament fixation plates, each free filament fixation plate consisting of a rectangular frame and a vinylon mesh winding structure connected to the rectangular frame; and a transparent cover plate covering the open top of the transparent culture box.

[0006] Furthermore, support blocks are connected to the four corners of the bottom of the free filament fixation plate, so that gaps are formed between the bottom free filament fixation plate and the bottom surface of the transparent incubator, and between two adjacent free filament fixation plates.

[0007] Furthermore, the outer surfaces of the rectangular frame are provided with multiple grooves along their circumference.

[0008] Furthermore, the rectangular frame is formed by vertically splicing two parallel first plastic strips and two parallel second plastic strips, and the outer surfaces of the first plastic strips and the second plastic strips are provided with grooves evenly distributed along their length.

[0009] Furthermore, the vinylon mesh winding structure includes a first vinylon wire and a second vinylon wire. The first vinylon wire is wound longitudinally along the rectangular frame at a certain interval, and the second vinylon wire is wound transversely along the rectangular frame at a certain interval. After the first vinylon wire and the second vinylon wire are wound together, a mesh structure is formed.

[0010] Furthermore, the cross-sectional area of ​​the transparent cover is larger than the opening area of ​​the transparent incubator.

[0011] Furthermore, the transparent cover is a transparent glass cover.

[0012] Furthermore, the supporting block is a transparent plastic supporting block.

[0013] Compared with existing technologies, the above technical solution has the following advantages: simple overall structure, low cost, large algal filament culture volume and high space utilization, providing an efficient basic device for the attachment and proliferation culture of free filaments of *Porphyra yezoensis*, and significantly improving the economic benefits of *Porphyra yezoensis*. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the free filament fixation plate 2 in this utility model;

[0018] Figure 4 It corresponds Figure 3 Enlarged view of part A in the image.

[0019] Explanation of reference numerals in the attached drawings: 1. Transparent incubator; 11. Open opening; 2. Free filament fixation plate; 21. Rectangular frame; 211. First plastic strip; 212. Second plastic strip; 22. Vinylon mesh winding structure; 221. First vinylon thread; 222. Second vinylon thread; 23. Support block; 24. Groove; 3. Transparent cover. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0021] To address the problems existing in the prior art, this utility model provides a device for the rapid attachment and propagation of free filaments of Porphyra yezoensis. By optimizing the structure of the attachment substrate and the culture environment, it promotes the stable attachment and large-scale propagation of free filaments. The following is a detailed description of this utility model with reference to the accompanying drawings.

[0022] See Figures 1-4 As shown, the technical solution adopted in this specific embodiment is: a device for rapid attachment and propagation of free filamentous structures of *Porphyra yezoensis*, comprising a transparent culture box 1, a free filamentous structure fixation plate 2, and a transparent cover plate 3. The top of the transparent culture box 1 has an opening 11 for placing the free filamentous structure fixation plate 2. Multiple free filamentous structure fixation plates 2 are provided, and these plates are horizontally stacked inside the transparent culture box 1. A transparent cover plate 3 is provided at the top opening 11 of the transparent culture box 1. The transparent cover plate 3 is preferably a transparent glass cover plate, and the cross-sectional area of ​​the transparent cover plate 3 is larger than the opening area of ​​the opening 11 of the transparent culture box 1.

[0023] Preferably, the transparent incubator 1, the free filament fixation plate 2, and the transparent cover plate 3 are all made of light-transmitting material to ensure that the porphyria filaments on the stacked free filament fixation plates 2 can receive sufficient light to fully carry out photosynthesis.

[0024] It should be further explained that support blocks 23 are connected to the four bottom corners of the free filament attachment plate 2. These support blocks 23 are transparent plastic support blocks, adhered to the four bottom corners of the free filament attachment plate 2. The support blocks 23 are at least the same height as the rectangular frame 21 of the free filament attachment plate 2. This ensures that there are gaps between the bottom free filament attachment plate 2 and the transparent culture box 1, as well as between adjacent free filament attachment plates 2. This prevents physical compression between the upper and lower layers of free filament attachment plates 2, ensuring sufficient growth space for the free filaments of *Porphyra yezoensis*, allowing light and nutrients to be evenly distributed on each free filament attachment plate 2, thereby promoting its rapid growth and propagation.

[0025] It should be further explained that the free filament fixation plate 2 is specifically composed of a rectangular frame 21 and a vinylon mesh structure connected to the rectangular frame 21.

[0026] The rectangular frame 21 has multiple grooves 24 formed along its circumference on its outer surface. These grooves 24 are used to wrap the vinylon mesh structure. The grooves 24 can be formed from top to bottom and have a length equal to the thickness of the frame 21, or they can be small recesses at the corners of the frame 21, or other recesses that can be used to fix the vinylon mesh structure.

[0027] The rectangular frame 21 is formed by vertically splicing two parallel first plastic strips 211 and two parallel second plastic strips 212. The outer surfaces of the first plastic strips 211 and the second plastic strips 212 are provided with multiple grooves 24, which are evenly distributed along the length of the first plastic strip 211 or the second plastic strip 212.

[0028] The vinylon mesh winding structure 22 includes a first vinylon thread 221 and a second vinylon thread 222. The first vinylon thread 221 is wound along the longitudinal direction of the rectangular frame 21 at a certain interval, and the second vinylon thread 222 is wound along the transverse direction of the rectangular frame 21 at a certain interval. After the first vinylon thread 221 and the second vinylon thread 222 are wound, a mesh-like structure is formed. This provides sufficient attachment points and growth space for the free filaments of *Porphyra yezoensis*, and also ensures uniform light distribution, which is beneficial to the photosynthesis and growth of the free filaments.

[0029] This invention effectively promotes the stable attachment and large-scale propagation of free filaments of *Porphyra yezoensis* by optimizing the substrate structure and culture environment. The device has a simple overall structure, low operating cost, large algal filament culture volume, and high space utilization rate, providing an efficient basic device for the attachment and proliferation culture of free filaments of *Porphyra yezoensis*, and significantly improving the economic benefits of *Porphyra yezoensis*.

[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A device for rapid attachment and propagation of free-living filamentous Porphyra haitanensis, characterized in that, The utility model relates to a transparent incubator, which comprises: a transparent incubator (1) with an open top (11); a plurality of free filament fixing plates (2) horizontally stacked in the transparent incubator (1), with a certain gap between the bottommost free filament fixing plate (2) and the bottom surface of the transparent incubator (1) and between two adjacent free filament fixing plates (2); a transparent cover plate (3) covering the open top (11) of the transparent incubator (1).

2. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 1, characterized in that, The bottom corners of each free filament fixing plate (2) are connected with support blocks (23) to form gaps between the bottommost free filament fixing plate (2) and the bottom surface of the transparent incubator (1) and between two adjacent free filament fixing plates (2).

3. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 1, characterized in that, A plurality of grooves (24) are formed on the outer surface of the rectangular frame (21) along its circumference.

4. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 1, characterized in that, The rectangular frame (21) is composed of two parallel first plastic strips (211) and two parallel second plastic strips (212) vertically spliced, and the outer surfaces of the first plastic strips (211) and the second plastic strips (212) are provided with grooves (24) uniformly distributed along their length direction.

5. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 1, characterized in that, The transparent cover plate (3) has a cross-sectional area greater than the opening area of the open top (11) of the transparent incubator (1).

6. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 1, characterized in that, The transparent cover plate (3) is a transparent glass cover.

7. The device for rapid attachment and mass propagation of free-living filamentous Bangia according to any one of claims 1 or 6, characterized in that, The support blocks (23) are transparent plastic support blocks.

8. The device for rapid attachment and mass propagation of free-living Porphyra haitanensis filaments according to claim 2, characterized in that, ​