Outdoor sea grass cultivation device convenient to assemble

Abstract

The utility model provides a convenient-to-assemble outdoor sea grass cultivation device, which comprises a connecting assembly, four first cross rods and a second cross rod, the connecting assembly comprises a first connecting piece and a second connecting piece which are the same in structure, the number of the first cross rods is four, and the first cross rods are connected end to end through the first connecting piece in an inserted manner; the number of the second cross rods is four, the second cross rods are detachably connected end to end through second connecting pieces, the second cross rods are located over the first cross rods, and vertically-placed supporting rods are assembled between the first connecting pieces and the second connecting pieces in an inserted connection mode. A frame formed by the connecting assemblies, the first transverse rods, the second transverse rods and the supporting rods can support and fix a plastic film to contain water, and therefore the frame is used for cultivating sea grass. The first connecting piece and the second connecting piece are the same in structure and do not need to be distinguished in the assembling process, so that rapid assembling is achieved in the outdoor environment, and the assembling time is greatly shortened; and non-destructive disassembly is supported, transportation and repeated utilization are facilitated, and the depreciation cost of equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of marine ecological restoration technology, and more specifically, to an outdoor seaweed cultivation device that is easy to assemble. Background Technology

[0002] Seagrass beds, as a typical representative of high-productivity ecosystems in nearshore waters, have had their multidimensional ecological value widely verified by the scientific community: in terms of biological resources, their complex three-dimensional structure provides brooding grounds and feeding substrates for over 60% of marine economic species; in terms of environmental regulation, the carbon sequestration capacity of each hectare of mature seagrass bed can reach 1130 kg / year, equivalent to 35 times that of tropical rainforests, while significantly reducing the frequency of red tides and the risk of aquaculture diseases by adsorbing heavy metals and degrading organic pollutants. However, since the mid-20th century, under the multiple pressures of land reclamation projects, land-based pollution, and climate change, the global seagrass bed area has been shrinking at a rate of approximately 7% per year. In typical distribution areas in northern my country (such as Rongcheng Bay in Shandong), the degradation rate has reached 83% of the historical average for the same period, leading to accelerated seabed desertification and a significant decline in the regenerative capacity of fishery resources.

[0003] Seagrass transplantation causes minimal disturbance to the in-situ ecosystem and effectively maintains population genetic diversity, making it an important method for seagrass bed ecological restoration. After years of technological breakthroughs, the "seagrass cultivation and transplantation method"—which involves collecting seagrass seeds, artificially cultivating seedlings, and then transplanting them to the seabed once they reach a certain size—significantly improves seed survival rates, enabling seagrass transplantation to enter a stage of large-scale application. Research has found that cultivating seagrass seedlings outdoors for a period of time to acclimatize, similar to the "hardening-off" process in crop cultivation, can improve the final transplant survival rate. This requires specialized cultivation equipment for short-term cultivation. Currently, the equipment, fixed with steel pipes, requires specialized workers to assemble, disassemble, and reassemble, resulting in high labor intensity and costs. With the further expansion of seagrass bed restoration areas, there is an urgent need for an easily assembled outdoor seagrass cultivation device.

[0004] In view of the above, this utility model is hereby proposed. Utility Model Content

[0005] The problem solved by this invention is that the existing seaweed cultivation devices have complex structures, are cumbersome to disassemble and assemble, resulting in high labor intensity and high costs.

[0006] To address the aforementioned problems, this utility model provides an easy-to-assemble outdoor seaweed cultivation device, comprising a connecting assembly, a first crossbar, and a second crossbar. The connecting assembly includes a first connector and a second connector with identical structures. The first crossbar consists of four members connected end-to-end via the first connector. The second crossbar consists of four members detachably connected end-to-end via the second connector. The second crossbar is located directly above the first crossbar. A vertically placed support rod is inserted and assembled between the first connector and the second connector. The frame formed by the connecting assembly, the first crossbar, the second crossbar, and the support rod can support and fix a plastic film to contain water, thereby enabling seaweed cultivation.

[0007] This setup enables rapid assembly in outdoor environments, reducing assembly time to as little as 15 minutes. The second crossbar is detachably fixed, supporting non-destructive disassembly, facilitating transportation and reuse, and reducing equipment depreciation costs. The first and second connectors have identical structures, eliminating the need for differentiation during assembly, resulting in good versatility and high installation efficiency.

[0008] Preferably, the first connector includes a first connecting part, a second connecting part, and a third connecting part that are perpendicular to each other and have the same structure, for limiting the assembly support rod, and for connecting two adjacent first crossbars or second crossbars.

[0009] This setup eliminates the need to differentiate the orientation of the first connector during assembly, allowing for the simultaneous assembly of the support rod and either the first or second crossbar, significantly improving installation efficiency. Furthermore, the first connector decomposes the applied force into X, Y, and Z axial components, reducing the risk of stress concentration at a single point.

[0010] Preferably, the first connecting part includes a first circular tube and a second circular tube arranged coaxially, the inner diameters of the first circular tube 101 and the second circular tube are D1 and D2 respectively, the outer diameter of the second crossbar is D3, wherein D3 < D2 < D1, a protrusion is provided on the outer side wall of the second crossbar, and a limiting part is provided on the second circular tube at a position corresponding to the protrusion. The limiting part is L-shaped, and the protrusion is fitted to the limiting part by rotating the second crossbar.

[0011] This setup allows for locking by slightly rotating the second crossbar, enabling single-person operation of a single node with minimal time consumption, significantly improving installation efficiency. By rotating it in the opposite direction at a certain angle, the protrusion can be disengaged from the limiting part, avoiding structural damage caused by traditional cutting or hammering. It can be reused more than 200 times.

[0012] Preferably, there are two limiting portions, spaced apart along the outer wall of the second circular tube. This arrangement balances ease of assembly with structural strength of the first connecting portion, further improving installation efficiency with the second crossbar.

[0013] Preferably, a circular hole is provided at a position corresponding to the limiting part of the first circular tube. This arrangement can reduce weight without affecting the mechanical strength of the connecting components, and at the same time, the position of the protrusion can be quickly calibrated visually or with laser assistance, reducing the assembly error rate from 5% to 0.3%.

[0014] Preferably, the outer diameter of the support rod is D4, where D4 = (0.9-0.95)*D1 = (1.05-1.1)*D2. This arrangement allows the support rod to be inserted and fitted into the first connector while simultaneously allowing the second crossbar to be snapped and fitted into the first connector, resulting in high assembly efficiency.

[0015] Preferably, the first connecting part further includes a third circular tube coaxially arranged with the second circular tube. The third circular tube is located inside the second circular tube and its inner diameter is D5. The diameter of the first crossbar is D6, wherein D6 < D5. Since the third circular tube is located in the middle of the first connecting part, there is a gap between the installed third circular tube and the ground, thereby preventing it from being immersed in seawater for a long time, making it less susceptible to seawater corrosion, and extending its service life.

[0016] Preferably, the surface of the connecting component is coated with an anti-fouling coating, which is made of silicon-based nanomaterials or polytetrafluoroethylene. This not only prevents algae from adhering and ensures the internal structure of the connecting component remains clean to avoid unexpected situations such as jamming during connection, but also prevents performance degradation caused by corrosion of the conductive path.

[0017] Compared with the prior art, the easy-to-assemble outdoor seaweed cultivation device of this utility model has the following beneficial effects: 1) No need to distinguish the connecting components during assembly, it can be quickly assembled in the outdoor environment, and the assembly time is greatly shortened; 2) It supports non-destructive disassembly, which is convenient for transportation and reuse, and greatly reduces the cost of seaweed transplantation; 3) It has a simple structure and is convenient for mass production and large-scale production. Attached Figure Description

[0018] Fig. 1 This is an overall schematic diagram of the easy-to-assemble outdoor seaweed cultivation device of this utility model;

[0019] Fig. 2 This is an overall schematic diagram of the connector described in this utility model;

[0020] Fig. 3 This is a front view of the connector described in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10-Connecting assembly; 1-First connector; 11-First connecting part; 101-First round tube; 1011-Round hole; 102-Second round tube; 1021-Limiting part; 103-Third round tube; 12-Second connecting part; 13-Third connecting part; 2-Second connector; 20-First crossbar; 30-Support rod; 40-Second crossbar. Detailed Implementation

[0023] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Without conflict, the technical features of this utility model can be combined with each other.

[0024] Seagrass beds, the only angiosperm community completely submerged in seawater, account for only 0.2% of the total ocean area, yet contribute as much as 18% of marine carbon sequestration, serving as a "hidden carbon sink" and biodiversity sanctuary for marine ecosystems. However, due to human activities and climate change, global seagrass beds are continuously degrading, leading to an ecological predicament of disappearing fish spawning grounds and a sharp decline in benthic biodiversity.

[0025] The "seagrass cultivation and transplantation method" has enabled seagrass bed restoration to enter a stage of large-scale application. This method requires seagrass seedlings to be cultivated outdoors for a certain period of time to adapt and improve the survival rate of the final transplant. Currently, a frame is constructed by welding materials such as steel pipes, and then a plastic film is laid inside the frame to form a temporary cultivation device with an overall rectangular structure. However, the installation and fixing of the steel pipes requires professional operation and can only be used once, resulting in low installation efficiency. Although Chinese patent application number 202011200739.9 discloses an assembled corner connector that can simultaneously fix the first connector, the second connector, and the third connector, its structure is too complex to be used to construct a seagrass cultivation device. Therefore, the applicant proposes the following technical solution:

[0026] like Figs. 1-3 As shown, an easy-to-assemble outdoor seaweed cultivation device includes a connecting assembly 10, a first crossbar 20, and a second crossbar 40. The connecting assembly 10 includes a first connector 1 and a second connector 2 with identical structures. There are four first crossbars 20 connected end-to-end by the first connector 1. There are four second crossbars 40 connected end-to-end by the second connector 2. The second crossbars 40 are located directly above the first crossbars 20. A vertically placed support rod 30 is inserted between the first connector 1 and the second connector 2. The frame formed by the connecting assembly 10, the first crossbar 20, the second crossbar 40, and the support rod 30 can support and fix a plastic film to contain water, thereby enabling seaweed cultivation.

[0027] This application enables rapid assembly in outdoor environments, reducing assembly time to 15 minutes. The second crossbar 40 is detachably fixed, supporting non-destructive disassembly, facilitating transportation and reuse, and reducing equipment depreciation costs. The first connector 1 and the second connector 2 have identical structures, eliminating the need for differentiation during assembly, resulting in good versatility and high installation efficiency. Adjusting the length of the support rod 30 allows the frame to dynamically adapt to the different growth stages of seaweed within a range of 0.5-1.5m.

[0028] It should be noted that the upper edge of the plastic film and the second crossbar 40 can be tied together with a rope, or a hook can be set on the upper edge of the plastic film and hooked onto the second crossbar 40. The installation of the plastic film and the frame is existing technology and will not be described in detail here.

[0029] As an illustration of this utility model, the first connecting member 1 includes a first connecting part 11, a second connecting part 12, and a third connecting part 13 that are perpendicular to each other and have the same structure. These are used to limit the assembly of the support rod 30 and simultaneously connect two adjacent first crossbars 20 or second crossbars 40. This configuration eliminates the need to distinguish the orientation of the first connecting member 1 during assembly, allowing for simultaneous assembly of the support rod 30 and the first crossbars 20 or second crossbars 40, significantly improving installation efficiency. Furthermore, the first connecting member 1 decomposes the applied force into X / Y / Z triaxial components, reducing the risk of stress concentration at a single point. Even if a single first connecting member 1 is damaged or fails, it can be quickly replaced without disassembling the entire frame, significantly reducing maintenance costs.

[0030] Preferably, the first connecting part 11 includes a first circular tube 101 and a second circular tube 102 coaxially arranged. The inner diameters of the first circular tube 101 and the second circular tube 102 are D1 and D2, respectively, and the outer diameter of the second crossbar 40 is D3, where D3 < D2 < D1. A protrusion is provided on the outer side wall of the second crossbar 40, and a limiting part 1021 is provided on the second circular tube 102 at a position corresponding to the protrusion. The limiting part 1021 is L-shaped. The protrusion is limited and fitted to the limiting part 1021 by rotating the second crossbar 40. This setting can be locked by rotating the second crossbar 40 with a small amplitude. The single-person operation and single-node time consumption are short, which greatly improves the installation efficiency. The protrusion can be disengaged from the limiting part 1021 by rotating it in the opposite direction by a certain angle, avoiding structural damage caused by traditional cutting or hammering. It can be reused more than 200 times.

[0031] Preferably, there are two limiting portions 1021, spaced apart along the outer wall of the second circular tube 102. This arrangement balances ease of assembly with the structural strength of the first connecting portion 11, further improving the installation efficiency with the second crossbar 40. Preferably, the protrusion and the limiting portion 1021 engage with an Archimedean spiral, achieving complete self-locking when the rotation angle reaches 15°. This arrangement ensures a displacement suppression rate of ≥98% under 10-level winds and waves (flow velocity 2.3 m / s), guaranteeing the tightness and stability of the assembly.

[0032] Preferably, a circular hole 1011 is provided at a position corresponding to the limiting part 1021 of the first circular tube 101. This arrangement can reduce weight without affecting the mechanical strength of the connecting component 10. At the same time, the light-transmitting design of the circular hole 1011 and the limiting part 1021 allows for quick calibration of the protrusion position by visual inspection or laser assistance, reducing the assembly error rate from 5% to 0.3%. In addition, seawater-compatible grease can be periodically added through the circular hole 1011 to reduce the coefficient of rotational friction and extend service life.

[0033] As an example of this utility model, the outer diameter of the support rod 30 is D4, where D2 < D4 < D1. Preferably, D4 = (0.9-0.95) * D1 = (1.05-1.1) * D2. This arrangement allows the support rod 30 to be inserted and assembled into the first connecting member 1 in a limited position, while simultaneously allowing the second crossbar 40 to be snapped and assembled into the first connecting member 1, resulting in high assembly efficiency.

[0034] Preferably, the first connecting part 11 further includes a third round tube 103 coaxially arranged with the second round tube 102. The third round tube 103 is located inside the second round tube 102 and its inner diameter is D5. The diameter of the first crossbar 20 is D6, wherein D6 < D5.

[0035] Since the first crossbar 20 is located below the support rod 30, its main function is to prevent the position of the connecting component 10 from shifting. It does not need to bear too much force. Inserting the first crossbar 20 into the third round tube 103 can achieve quick installation of the first crossbar 20. Since the third round tube 103 is located in the middle of the first connecting part 11, there is a gap between the installed third round tube 103 and the ground, thereby avoiding long-term immersion in seawater, making it less susceptible to seawater corrosion and extending its service life.

[0036] As an example of this invention, the connecting component 10 includes an anti-fouling coating applied to its surface. This not only prevents algae adhesion, ensuring the interior of the connecting component 10 remains clean and preventing unexpected situations such as jamming during connection, but also prevents performance degradation caused by corrosion of the conductive pathways. As an example of this invention, the anti-fog coating is made of silicon-based nanomaterials or a modified polytetrafluoroethylene layer.

[0037] During assembly, the end portion of the first crossbar 20 is inserted into the third round tube 103 of the first connector 1, and the four first crossbars 20 are connected end to end to achieve pre-assembly. The support rod 30 is inserted and assembled into the first round tube 101 of the first connector 1, and the second connector 2 is inserted and assembled into the other end of the support rod 30. Then, the ends of the four second crossbars 40 are respectively inserted into the second round tube 102 of the upper second connector 2. By simultaneously applying force to the first connector 1 and the second connector 2 located on the diagonal, the ends of the first crossbars 20 and the second crossbars 40 are inserted to a predetermined depth. Then, by rotating the second crossbar 40, the protrusion is engaged with the limiting part 1021 to complete the assembly.

[0038] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An outdoor seaweed cultivation device that is easy to assemble, characterized by comprising: The utility model provides a kind of frame for cultivating sea grass, including connecting component (10), first crossbar (20), second crossbar (40), the connecting component (10) includes first connecting piece (1) and second connecting piece (2) of same structure, the first crossbar (20) has four and is connected by first connecting piece (1) head-tail splicing, the second crossbar (40) has four and is detachably connected by second connecting piece (2) head-tail, the second crossbar (40) is located in the upper of first crossbar (20), the first connecting piece (1) second connecting piece (2) between splicing assembly vertical placement support pole (30), the frame formed by the connecting component (10), first crossbar (20), second crossbar (40), support pole (30) can support and fix plastic film to contain water body, to be used for sea grass cultivation.

2. The outdoor seaweed cultivation device according to claim 1, wherein The first connecting piece (1) includes first connecting part (11), second connecting part (12) and third connecting part (13) which are perpendicular to each other and have the same structure, for limiting the assembly of the support pole (30) and connecting two adjacent first crossbars (20) or second crossbars (40).

3. The outdoor seaweed cultivation device according to claim 2, wherein The first connecting part (11) includes first circular tube (101) and second circular tube (102) arranged coaxially, the inner diameters of the first circular tube (101) and the second circular tube (102) are D1 and D2 respectively, the outer diameter of the second crossbar (40) is D3, and D3 < D2 < D1, the outer sidewall of the second crossbar (40) is provided with a protrusion, the second circular tube (102) is provided with a limiting part (1021) at a position corresponding to the protrusion, the limiting part (1021) is L-shaped, and the protrusion is limited to assemble to the limiting part (1021) by rotating the second crossbar (40).

4. The outdoor seaweed cultivation device according to claim 3, wherein The limiting part (1021) is two and is arranged at intervals along the outer wall of the second circular tube (102).

5. The outdoor seaweed cultivation device according to claim 3 or 4, wherein The first circular tube (101) is provided with a circular hole (1011) at a position corresponding to the limiting part (1021).

6. The outdoor seaweed cultivation device according to claim 5, wherein The outer diameter of the support pole (30) is D4, and D4 = (0.9-0.95)*D1 = (1.05-1.1)*D2.

7. The outdoor seaweed cultivation device according to claim 3, wherein The first connecting part (11) further includes a third circular tube (103) arranged coaxially with the second circular tube (102), the third circular tube (103) is located in the second circular tube (102) and has an inner diameter D5, and the diameter of the first crossbar (20) is D6, wherein D6 < D5.

8. The outdoor seaweed cultivation device according to claim 1, wherein The surface of the connecting component (10) is coated with an antifouling coating, and the material of the antifouling coating is a silicon-based nanomaterial or polytetrafluoroethylene.

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