A seedling attachment device

Abstract

This utility model belongs to the technical field of aquaculture equipment. It aims to solve the technical problem of high seedling loss and low survival rate caused by collisions between existing aquaculture equipment. This utility model provides a seedling attachment device, including end walls at both ends and a main body connected between the end walls. The main body has ridges spaced apart along its length, with grooves forming between adjacent ridges. The minimum width of the end walls is greater than the sum of the widths of the ridges and the main body. By setting the spaced ridges and grooves, a striped structure is formed, which helps oyster seedlings hide, reduces the impact of water flow on the seedlings, and promotes stable attachment and growth. The minimum width of the end walls, being greater than the sum of the widths of the ridges and the main body, allows the end walls to completely cover the main body and the ridge structure in the lateral direction, forming an extended covering structure. When the attachment device collides, the end walls can effectively shield the internal ridge and groove areas, reducing seedling detachment and damage caused by collisions, thus reducing losses.

Description

Technical Field

[0001] This utility model belongs to the technical field of aquaculture equipment, and in particular relates to a seedling attachment device. Background Technology

[0002] In oyster farming, traditional methods of attaching oyster seedlings often rely on natural stones, shells, or simple cement blocks. Natural stones are irregular in shape and size, resulting in large differences in the attachment area of ​​oyster seedlings, and the labor intensity during transportation and deployment is high. Although shells are made of natural materials, they have low hardness and are easily damaged by long-term seawater erosion and biological attachment, resulting in a short service life and increased farming costs.

[0003] The above situation is inconvenient to manage and inefficient. To address this, people have created a series of tools to simulate natural rocks, making management easier, reducing labor, and enabling mass breeding.

[0004] For those using an attachment plate method, please refer to Chinese invention patent application document CN110896902A, entitled "An Oyster Seed Attachment Device," which includes the appendix... Figure 1 The relevant content is disclosed in sections

[0012] to

[0015] of the specification;

[0005] For examples using cement blocks, see Chinese utility model patent application CN206196675U, entitled "An Adsorption Device for Oyster Farming," which includes appendices. Figure 1 The specification

[0026] to

[0027] discloses the following: An oyster farming adsorption device includes a plastic rope 1 and multiple cement blocks 2. The cement blocks 2 are square, and a threading hole 20 is opened in the center of each cement block 2. The plastic rope 1 connects the multiple cement blocks 2 into a string by passing through the threading hole 20 on each cement block 2 in sequence. The surface of the cement blocks 2 is densely covered with grooves 21.

[0006] The drawback of existing aquaculture equipment is that it suffers from significant wear and tear, mainly due to collisions during the transportation of equipment and oyster seedlings, as well as collisions caused by water flow in the aquaculture area. These collisions can cause considerable damage to the oyster seedlings and affect their survival rate.

[0007] Therefore, it is necessary to provide a new seedling attachment device to solve the above-mentioned technical problems. Utility Model Content

[0008] The technical problem solved by this utility model is to provide a seedling attachment device, which solves the technical problem of large seedling loss and low survival rate caused by collisions between existing breeding equipment.

[0009] To solve the above-mentioned technical problems, this utility model provides a seedling attachment device, including end walls at both ends and a main body connected between the end walls. The main body has ridges arranged at intervals along its length, and a groove is formed between adjacent ridges. The minimum width of the end wall is greater than the sum of the widths of the ridges and the main body.

[0010] The three-dimensional concave-convex structure formed by the ridges and grooves creates a buffering and isolation effect when subjected to external collisions, which can disperse local stress, reduce the direct impact area of ​​collision energy on the attached oyster seedlings, and reduce the risk of mechanical damage.

[0011] This invention features end walls at both ends and a main body connected between them. The main body contains ridges and grooves spaced along its length, creating a three-dimensional space for oyster larvae to attach and grow, effectively increasing attachment density and growth stability. Crucially, the minimum width of the end walls is greater than the sum of the widths of the ridges and the main body, allowing the end walls to completely cover the main body and ridge structure in the lateral direction, forming an extended covering structure. When multiple attachment devices are placed side-by-side or stacked, the end walls effectively shield the internal ridge and groove areas, significantly reducing larvae detachment and mechanical damage caused by collisions, thus lowering aquaculture losses.

[0012] Furthermore, the attachment device is integrally molded from cement material with a rough surface. The rough surface significantly increases the specific surface area, which is beneficial for the initial attachment and firm fixation of oyster larvae.

[0013] Furthermore, the surface of the ridge has an arc-shaped structure with a large radius of curvature, which increases the attachment area and achieves streamlined flow guidance. The arc-shaped design with a large radius of curvature on the surface of the ridge increases the effective surface area available for oyster seedlings to attach.

[0014] Furthermore, the longitudinal section of the end wall is an isosceles trapezoid that is narrower at the top and wider at the bottom. The isosceles trapezoidal longitudinal section structure of the end wall forms a stable mechanical configuration, enhancing the anti-overturning ability of the seedling attachment device on the platform.

[0015] Furthermore, a connecting rope for connecting multiple seedling attachers is provided, which runs through the length of the seedling attacher and is fixedly connected to the seedling attacher body to form a continuous seedling attaching string structure, which is used to improve breeding density and management efficiency.

[0016] Furthermore, the connecting rope is a polyethylene rope.

[0017] Furthermore, the connecting rope is a polypropylene multifilament rope, woven from multiple strands of multifilament.

[0018] Compared with related technologies, the seedling attachment device provided by this utility model has the following beneficial effects:

[0019] This invention features end walls at both ends and a main body connecting them. The main body contains ridges and grooves spaced along its length, forming a striped structure that helps oyster larvae hide and creates a three-dimensional space for attachment and growth. This reduces the impact of water flow on the larvae and promotes stable attachment and growth. Crucially, the minimum width of the end walls is greater than the sum of the widths of the ridges and the main body, ensuring the end walls completely cover the main body and ridge structure in the lateral direction, forming an extended covering structure. Even if two attachment devices collide, i.e., the end wall inserts into one of the grooves, not all grooves will be inserted. Furthermore, the end walls effectively shield the internal ridge and groove areas, significantly reducing larvae detachment and mechanical damage caused by collisions, thus lowering aquaculture losses.

[0020] This invention designs the seedling attachment device as an isosceles trapezoid with curved sides and grooves, which effectively reduces the impact of seawater flow on the attachment device, lowers the load-bearing pressure on the connecting rope, and reduces the shaking or falling off of the carrier caused by water flow impact, thus improving the stability of the aquaculture process.

[0021] This invention features a structural design that connects multiple seedling attachers via connecting ropes, enabling modular management of the seedling attaching units. This facilitates unified deployment, retrieval, and daily inspection. Simultaneously, the uniform spacing between each attacher ensures that oyster seedlings can fully contact seawater, ingest plankton, and receive sunlight during their growth, promoting uniform oyster growth and improving the quality and yield of the finished oysters. Attached Figure Description

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a three-dimensional structural diagram of the seedling attachment device in this utility model;

[0024] Figure 2 This is a top view of the seedling attachment device in this utility model;

[0025] Figure 3 This is a schematic diagram showing the connection and use of the seedling attachment devices of this utility model.

[0026] In the diagram: 1. Seedling attachment device; 2. Connecting rope; 10. Main body; 11. End wall; 12. Raised ridge; 13. Divider groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] See Figure 1 and Figure 2 The oyster attachment device 1 includes end walls 11 located at both ends and a main body 10 connected between the two end walls 11. The main body 10 has convex ridges 12 arranged at intervals along its length direction, and grooves 13 for oyster attachment and growth are formed between adjacent convex ridges 12.

[0029] The surface of the ridge 12 has an arc-shaped structure with a large radius of curvature, which increases the effective attachment area and achieves a streamlined flow guiding effect, thus facilitating water circulation in the aquaculture area.

[0030] The convex ridge 12 not only increases the effective surface area for oyster seedlings to attach, improving attachment density and survival rate, but also acts as a physical shield to reduce the damaged area and protect the oyster seedlings when subjected to external impacts. The three-dimensional concave-convex structure formed by the convex ridge 12 and the partition 13 creates a buffering and isolation effect, effectively dispersing local stress and reducing the area where impact energy directly acts on the surface of the oyster seedlings, thereby significantly reducing the risk of damage caused by external impacts.

[0031] The entire oyster attachment device 1 has a rough surface and a high specific surface area, which can effectively attract and fix oyster larvae, improving attachment efficiency. At the same time, the raised and recessed structure formed by the ridge 12 and the groove 13 provides a good growth space for the larvae and prevents excessive density. The entire structure is made of cement, which is low in cost, corrosion-resistant, and has a long service life, making it suitable for marine or near-shore aquaculture environments.

[0032] The longitudinal section of the end wall 11 is an isosceles trapezoid that is narrower at the top and wider at the bottom. Its upper base width is greater than the width of the ridge 12, which can completely cover the structural range of the main body 10, ensuring the integrity of the overall structure, and providing shielding protection for the internal ridge 12 and the attached oyster seedlings during handling or collision.

[0033] See Figure 3 In actual use, multiple seedling attachers 1 are connected in series by connecting rope 2 to form a continuous seedling attaching string structure, so as to improve breeding density and management efficiency.

[0034] In one embodiment, the connecting rope 2 is pre-embedded and solidified inside the seedling attachment device 1 during its preparation. The connecting rope 2 is placed in the mold and straightened and positioned along its length. Cement slurry is poured to pre-embed the connecting rope 2 inside the end wall 11 and the main body 10. After curing and demolding, an integrally formed seedling attachment device 1 is formed, wherein the connecting rope 2 is firmly bonded to the cement matrix.

[0035] Specifically, the connecting rope 2 runs through the length of the seedling attachment device 1 and extends at least between the end walls 11 at both ends, firmly bonding with the cement substrate to ensure connection strength and long-term durability. When the seedling attachment devices are deployed to the aquaculture area, the entire string of pre-connected seedling attachment devices 1 is sunk to the designated position, and one or both ends of the connecting rope 2 are fixed to anchor points, floating frames, or aquaculture frames to prevent them from being washed away or displaced over long distances by water currents, tides, or waves. This integrated connection structure not only simplifies the on-site installation process but also significantly improves the stability and safety of the seedling attachment device 1 in complex environments.

[0036] In one embodiment, the binding rope 2 is made of polyethylene (PE) rope. This rope has excellent resistance to seawater corrosion and can maintain stable strength in long-term seawater immersion environment. It is not easy to age and become brittle due to salt erosion. At the same time, the surface of PE rope is relatively rough, and the friction is greater when it fits into the groove of the waist of the seedling attacher 1, which can ensure the binding of the seedling attacher 1 firmly. In addition, its flexibility is moderate, which is convenient for winding operation and can closely fit the contour of the seedling attacher 1, further improving the fixing effect.

[0037] In one embodiment, the connecting rope 2 is made of polypropylene (PP) multifilament rope. This rope is woven from multiple strands of multifilament, has high strength, and can withstand the overall weight of multiple seed attachment devices 1 connected in series, as well as the tension brought by the impact of seawater, effectively avoiding breakage. Moreover, PP multifilament rope has good UV resistance and is not easily degraded even after long-term exposure to sunlight. It has a long service life, which can match the service life of the seed attachment device 1, reducing aquaculture costs.

[0038] The beneficial effects of the seedling attachment device provided by this utility model are as follows:

[0039] By incorporating arc-shaped ridges spaced along the length of the main body, the effective surface area for oyster seedling attachment is increased, improving attachment density and survival rate. Furthermore, the streamlined flow-guiding structure promotes water circulation. Simultaneously, the three-dimensional concave-convex structure formed by the ridges and partitions acts as a physical shield and buffer unit during external collisions, effectively dispersing local stress and reducing the direct impact area of ​​collision energy on the attached oyster seedlings, significantly mitigating mechanical damage. The end wall adopts an isosceles trapezoidal longitudinal section design, narrower at the top and wider at the bottom, with the upper base width greater than the ridge width, completely covering the internal structure and providing protection for the ridges and attachment area during transportation and use. Effective protection and enhanced overall structural stability: The entire attachment device is integrally molded from cement material, with a rough surface and large specific surface area, which is conducive to the attachment and fixation of oyster larvae. It also has the advantages of low cost, corrosion resistance, high strength, and long service life, making it suitable for complex and variable near-shore or marine aquaculture environments. Multiple attachment devices are connected in series to form a continuous tandem structure, which facilitates large-scale deployment and management. The connecting ropes can be pre-embedded during manufacturing and run through the end walls, firmly bonded to the cement matrix, ensuring the reliability of the connection during long-term use, preventing it from being washed away by water flow, and improving its resistance to displacement. This attachment device significantly improves the efficiency and survival rate of oyster farming.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A seedling attaching device characterized by comprising: It includes end walls (11) located at both ends and a main body (10) connected between the end walls. The main body (10) has ridges (12) spaced apart along its length direction, and a partition groove (13) is formed between adjacent ridges (12). The minimum width of the end wall (11) is greater than the sum of the widths of the ridge (12) and the main body (10).

2. The device of claim 1, wherein, The seedling attachment device (1) is integrally formed from cement material, and its surface is rough.

3. The device of claim 1, wherein, The surface of the ridge (12) is an arc-shaped structure.

4. The device of claim 1, wherein, The longitudinal section of the end wall (11) is an isosceles trapezoid that is narrower at the top and wider at the bottom.

5. The device of claim 1, wherein, A connecting rope (2) for connecting multiple seedling attachers (1) is provided, which runs through the length of the seedling attacher (1), and the connecting rope (2) is fixedly connected to the body of the seedling attacher (1).

6. The device of claim 5, wherein, The connecting rope (2) is a polyethylene rope.

7. The device of claim 5, wherein, The connecting rope (2) is a polypropylene multifilament rope, which is woven from multiple strands of multifilament.

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