Recyclable Wave-Resistant Component for Underwater Seagrass Planting

Abstract

The present invention provides a recyclable wave-proof component for underwater seagrass planting, which includes a wave-proof sleeve, a dry mud cake, a wet mud layer, and a net cover; the wave-proof sleeve is used to be fixedly placed on the underwater ground in the seagrass planting area; the dry mud cake is embedded at the bottom of the wave-proof sleeve and is used to loosen from the wave-proof sleeve under seawater immersion; the wet mud layer is laid on the upper surface of the dry mud cake, and the wet mud layer is used to fix seagrass seeds; the net cover is arranged at the top of the wave-proof sleeve and has an avoidance hole in the center, and the avoidance hole is used to avoid the growing seagrass stems and leaves. The recyclable wave-proof component for underwater seagrass planting provided by the present invention is beneficial to the smooth rooting of seagrass seeds and improves the survival rate of seagrass; the dry mud cake loosens from the wave-proof sleeve along with the seagrass rooting and the seedling process of growing stems and leaves, so as to facilitate the recycling and reuse of the wave-proof sleeve and the net cover, which can not only reduce the consumption materials for seagrass planting and save costs, but also avoid the wave-proof sleeve and the net cover being soaked in seawater for a long time and affecting water quality, thereby improving environmental protection.

Description

Technical Field

[0001] The present invention belongs to the technical field of marine ecological restoration, and in particular relates to a recyclable wave-breaking component for underwater seaweed planting. Background Art

[0002] Seagrass degradation is a recognized global problem, and my country's seagrass is also facing a severe degradation situation. In recent years, activities such as land reclamation, destructive dredging, aquaculture, and domestic sewage have directly impacted the survival of seagrasses. Currently, my country's seagrass beds are primarily concentrated in the South China Sea and the Yellow Sea and Bohai Sea. The Leting-Caofeidian seagrass beds in the Yellow Sea and Bohai Sea are the most representative.

[0003] Replanting and restoring seagrass in degraded areas is a long-term project that requires persistence. Currently, seagrass planting is mainly carried out by underwater sowing and seedling transplanting. Among them, for underwater sowing, since seagrass seeds are planted on the seabed, they are easily affected by the impact of water waves, which affects the rooting of the seeds. Seagrass seeds are in a state of being stranded on the seabed surface for a long time and are easily destroyed by seabed aquatic organisms. Due to the long rooting period, after the seeds germinate, they will drift with the waves due to the lighter specific gravity, thereby affecting the survival rate of seagrass planting. There are also measures to use hydrolyzable materials to make protective boxes to protect seagrass seeds from water wave impact, but the hydrolysis process of hydrolyzable materials is relatively long, and the hydrolyzable materials will also have a negative impact on the water quality of seawater. Therefore, from an environmental protection perspective, this method should not be promoted. Summary of the Invention

[0004] An embodiment of the present invention provides a recyclable wave-breaking component for underwater seaweed planting, aiming to improve the survival rate of seaweed planting and environmental protection.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a recyclable wave-breaking component for underwater seaweed planting, including a wave-breaking sleeve, a dry mud cake, a wet mud layer, and a mesh cover; the wave-breaking sleeve is used to be plugged and fixed to the underwater ground in the seaweed planting area; the dry mud cake is embedded in the bottom of the wave-breaking sleeve, and is used to loosen from the wave-breaking sleeve when immersed in seawater; the wet mud layer is laid on the upper surface of the dry mud cake, and the wet mud layer is used to fix seaweed seeds; the mesh cover is arranged at the top of the wave-breaking sleeve, and has an avoidance hole in the center, and the avoidance hole is used to avoid growing seaweed stems and leaves.

[0006] In one possible implementation, the lower end of the wave-breaking sleeve is provided with teeth for inserting into the underwater ground at intervals along its circumference, the peripheral wall of the wave-breaking sleeve is provided with an array of through holes, the dry mud cake is located above the teeth and is provided with an array of water-permeable holes.

[0007] In some embodiments, the inner wall of the wave-breaking sleeve has a plurality of annular grooves spaced apart above the inserting teeth, each annular groove is filled with mud, and the mud is bonded to the peripheral wall of the dry mud cake.

[0008] Exemplarily, the wire mesh cover includes an inner sleeve and a wire ring. The inner sleeve is slidably inserted into the wave-proof sleeve from top to bottom. The wire ring is connected to the top end of the inner sleeve, and the inner circumferential surface of the wire ring forms an avoidance hole. Among them, the inner sleeve is used to press against the dry mud cake when the wave-proof sleeve is lifted upward. The top end of the inner sleeve extends upward out of the wave-proof sleeve, and the top end of the inner sleeve is adapted to be inserted into the lower end of the wave-proof sleeve.

[0009] For example, the inner wall of the wave-proof sleeve is provided with limiting ribs, and the circumferential wall of the inner sleeve is provided with limiting grooves. The limiting grooves extend upward from the lower end of the inner sleeve and are adapted for the limiting ribs to extend into. The lower end of the inner sleeve is provided with a pressing edge that bends inward. Among them, when the inner sleeve slides to the position where the limiting ribs abut against the top of the limiting grooves, the dry mud cake is separated from the wave-proof sleeve under the pressing action of the pressing edge.

[0010] In a possible implementation manner, the recyclable wave-proof component for underwater seagrass planting further includes a lifting auxiliary tool, and the lifting auxiliary tool is provided with a plurality of lifting heads. The top end of the wave-proof sleeve is provided with a lifting flanging that turns outward to its periphery, and a plurality of card slots are provided on the lifting flanging. Among them, each lifting head is used to correspondingly engage with each card slot.

[0011] In some embodiments, the lifting auxiliary tool includes a disc frame and a driving component. Among them, the disc frame is provided with a plurality of lifting rods spaced along the circumferential direction of the wave-proof sleeve. The lifting rods are rotatably connected to the disc frame, and the lower end of each lifting rod is provided with a lifting head. The lifting head has a lifting state of rotating to engage with the card slot and a release state of disengaging from the card slot. The driving component is arranged on the disc frame, and the output end of the driving component is connected to each lifting rod for driving each lifting rod to rotate synchronously to switch between the lifting state and the release state.

[0012] Exemplarily, the driving component includes a plurality of swing arms, a driving handle, a turntable, and a plurality of connecting rods. Among them, the plurality of swing arms are respectively connected to each lifting rod. The driving handle is rotatably connected to the disc frame. The turntable is rotatably connected to the disc frame and is connected to the driving handle. The plurality of connecting rods are spaced along the circumferential direction of the turntable. One end of the connecting rod is hinged to the edge of the turntable, and the other end is hinged to one of the swing arms.

[0013] For example, the lower end of the lifting rod is provided with a clamping rib extending along its radial direction, and the clamping rib forms a lifting head. The card slot extends along the radial direction of the wave-proof sleeve to the edge of the lifting flanging. Among them, when the lifting rod rotates to the position where the clamping rib is in the same extending direction as the card slot, the release state is formed.

[0014] In some embodiments, the lifting auxiliary tool further includes a pressure relief ring. The pressure relief ring is slidably connected to each lifting rod, and the pressure relief ring has an operating rod that slidably passes through the disc frame. The top end of the operating rod passes through the disc frame upward and is provided with a pressing handle. Among them, the pressure relief ring is used to press downward on the wire mesh cover when the wave-proof sleeve is lifted upward.

[0015] The beneficial effects of the recyclable wave - preventing component for underwater seagrass planting provided by the present invention are as follows: Compared with the prior art, for the recyclable wave - preventing component for underwater seagrass planting of the present invention, by embedding dry mud cakes at the bottom of the wave - preventing sleeve, it can serve as the laying foundation for the wet mud layer. Fix the seagrass seeds on the wet mud layer and cover the top of the wave - preventing sleeve with a net cover. Then place the wave - preventing sleeve on the underwater ground in the seagrass planting area. On the one hand, it can protect the wet mud layer by using the wave - preventing sleeve, thus avoiding excessive scouring of the wet mud layer by underwater water waves, which is beneficial for the seagrass seeds to take root smoothly. At the same time, it can also use the net cover to protect the seagrass seeds with a lighter specific gravity after germination, preventing the seagrass seeds from floating out of the wave - preventing sleeve, thus forming a secondary protection to promote the seagrass to take root smoothly, and then improving the survival rate of the seagrass. On the other hand, as the seagrass takes root and grows stems and leaves, the dry mud cakes gradually become wet and soft under the soaking of seawater and loosen from the wave - preventing sleeve. At this time, the wave - preventing sleeve together with the net cover can be lifted and recycled. This not only reduces the consumables for seagrass planting and saves costs, but also can avoid the wave - preventing sleeve and the net cover from being soaked in seawater for a long time and affecting water quality, thus improving environmental protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the three - dimensional structure of the recyclable wave - preventing component for underwater seagrass planting provided by the embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the sectional structure of the recyclable wave - preventing component for underwater seagrass planting provided by the embodiment of the present invention;

[0018] Figure 3 Schematic diagram of the exploded structure of the recyclable wave - preventing component for underwater seagrass planting provided by the embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the structure of the recyclable wave - preventing component for underwater seagrass planting provided by the embodiment of the present invention when stacked in multiple layers;

[0020] Figure 5 Schematic diagram of the structure of the recyclable wave - preventing component for underwater seagrass planting (multiple - layer wave - preventing sleeve) provided by the embodiment of the present invention when using a lifting auxiliary tool for seagrass planting operation;

[0021] Figure 6 Schematic diagram of the three - dimensional structure of the lifting auxiliary tool (the top plate and the bottom plate of the tray stand are in a disassembled state) used in the embodiment of the present invention;

[0022] Figure 7 Schematic diagram of the structure of the recyclable wave - preventing component for underwater seagrass planting (single - layer wave - preventing sleeve) provided by the embodiment of the present invention when using a lifting auxiliary tool for seagrass planting operation;

[0023] Figure 8 is Figure 7 Local enlarged structure diagram at position A in

[0024] Figure 9 This is a schematic diagram of the release state of the lifting rod adopted in the embodiment of the present invention.

[0025] In the figure: 10, wave-proof sleeve; 11, inserted teeth; 12, through-hole array; 13, annular groove; 14, limiting rib; 15, lifting flanging; 151, clamping groove; 20, dry mud cake; 21, water-permeable hole array; 30, wet mud layer; 40, mesh cover; 41, inner sleeve; 42, mesh ring; 411, limiting groove; 412, pressing edge; 50, lifting auxiliary tool; 51, disc frame; 511, top disc; 512, bottom disc; 513, lifting handle; 52, lifting rod; 521, clamping rib; 53, driving assembly; 531, swing arm; 532, driving handle; 533, turntable; 534, connecting rod; 54, pressure-relieving ring; 541, operating rod; 542, pressing handle. Specific embodiments

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention 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 the present invention and are not used to limit the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it can be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In the description of the present application, "a plurality of" or "several" means two or more, unless otherwise specifically defined.

[0028] Please refer to Figures 1 to 4 and now describe the seaweed underwater planting recyclable wave-proof member provided by the present invention. The seaweed underwater planting recyclable wave-proof member includes a wave-proof sleeve 10, a dry mud cake 20, a wet mud layer 30, and a mesh cover 40; the wave-proof sleeve 10 is used for plugging and fixing on the underwater ground in the seaweed planting area; the dry mud cake 20 is embedded at the bottom of the wave-proof sleeve 10 and is used to loosen from the wave-proof sleeve 10 under seawater immersion; the wet mud layer 30 is laid on the upper surface of the dry mud cake 20, and the wet mud layer 30 is used to fix seaweed seeds; the mesh cover 40 is arranged at the top of the wave-proof sleeve 10 and has an avoidance hole in the center, and the avoidance hole is used to avoid the growing seaweed stems and leaves.

[0029] It should be noted that in this embodiment, the anti-wave sleeve 10 can be circular, triangular, square or other polygons. Since the underwater ground in the seagrass planting area is sandy soil, when the anti-wave sleeve 10 is placed on the underwater ground, its lower end is inserted into the underwater ground and fixed. On this basis, the dry mud cake 20 is embedded in the anti-wave sleeve 10 near the lower end of the anti-wave sleeve 10. When the lower end of the anti-wave sleeve 10 is inserted into the underwater ground, the dry mud cake 20 presses against the underwater ground.

[0030] In this embodiment, the anti-wave sleeve 10 can be made of Monel alloy or stainless steel. Considering the fluidity of seawater on the underwater surface, it is preferably made of 304 stainless steel or 316 stainless steel to ensure the chemical stability of the anti-wave sleeve 10. First, it can prevent the anti-wave sleeve 10 from being corroded and damaged. Second, it can avoid the anti-wave sleeve 10 being corroded under the action of seawater and affecting water quality. Similarly, the mesh cover 40 is also preferably made of 304 stainless steel or 316 stainless steel.

[0031] In this embodiment, the mesh cover 20 and the anti-wave sleeve 10 can be an integral structure, that is, the top of the anti-wave sleeve 10 is fixedly covered with the mesh cover 20, which can prevent the mesh cover 20 from falling off under the impact of underwater water waves. The mesh cover 20 and the anti-wave sleeve 10 can also be a movable connection structure. For example, the mesh cover 20 forms a plug-in fit with the anti-wave sleeve 10 based on a plug-in body.

[0032] It should be explained that the avoidance hole provided in the center of the mesh cover 40 in this embodiment can enable the stems and leaves of seagrass seedlings to grow upward freely and extend out of the anti-wave sleeve 10. Specifically, the position where the seagrass seeds are fixed on the wet mud layer 30 corresponds to the position of the avoidance hole. The function of the mesh cover 40 is to block the water permeability of most of the top area of the anti-wave sleeve 10. On the one hand, it can prevent the seagrass seeds from floating out of the anti-wave sleeve 10 due to unstable fixation on the wet mud layer 30 (especially when the seagrass seeds germinate and their specific gravity decreases). On the other hand, it can ensure that seawater and sand grains can smoothly enter the internal space of the anti-wave sleeve 10, thus meeting the environmental requirements for seagrass growth and development. Normally, the anti-wave sleeve 10 can be removed after the seagrass seeds become seedlings in one month.

[0033] It should be noted that the seagrass underwater planting recyclable wave protection component provided in this embodiment is a prefabricated component. Among them, the wave protection sleeve 10 and the mesh cover 40 are recyclable and reusable components, while the dry mud cake 20 and the wet mud layer 30 gradually integrate with the underwater ground under seawater immersion. Specifically, the seabed mud is made into a cake shape through a mold and dried to form the dry mud cake 20, which is then embedded at the bottom of the wave protection sleeve 10. Alternatively, the seabed mud is directly filled into the wave protection sleeve 10 and then dried to form the dry mud cake 20 at the bottom of the wave protection sleeve 10. Then, a layer of seabed mud is covered on the dry mud cake 20 to form the wet mud layer 30. The seagrass seeds are pressed into the wet mud layer 30 so that the wet mud layer 30 wraps the seagrass seeds to ensure the fixation stability of the seagrass seeds. Finally, covering the mesh cover 40 can form a planting unit (for the convenience of description, hereinafter, the structure after embedding the dry mud cake 20 in the wave protection sleeve 10, fixing the seagrass seeds on the wet mud layer 30, and then covering the mesh cover 40 will be collectively referred to as a planting unit). When carrying out the seagrass planting operation, multiple planting units can be stacked, and then the stacked multiple planting units are placed layer by layer at the corresponding planting positions. This is beneficial to improving the planting efficiency. Of course, each planting unit can also be taken individually and placed at the planting positions.

[0034] The seagrass seeds fixed on the wet mud layer 30 complete the process of germination, rooting, and emergence within about one month of growing in seawater. During this time period, the dry mud cake 20 is fully infiltrated and softened by seawater, so that the dry mud cake 20 becomes loose from the inner wall of the wave protection sleeve 10. This ensures that the wave protection sleeve 10 can be smoothly lifted upwards, and it also avoids loosening of the seagrass root soil during the process of lifting the wave protection sleeve 10, and further avoids the seagrass seedlings being washed away by the underwater waves after the wave protection sleeve 10 is removed due to root loosening.

[0035] Compared with the prior art, the seagrass underwater planting recyclable wave protection component provided in this embodiment can use the dry mud cake 20 embedded at the bottom of the wave protection sleeve 10 as the laying foundation for the wet mud layer 30. The seagrass seeds are fixed on the wet mud layer 30 and the mesh cover 40 is covered on the top of the wave protection sleeve 10. Then, the wave protection sleeve 10 is placed on the underwater ground in the seagrass planting area. On the one hand, it can protect the wet mud layer 30 by using the wave protection sleeve 10, thus avoiding excessive scouring of the wet mud layer 30 by the underwater waves, which is beneficial to the seagrass seeds taking root smoothly. At the same time, it can also use the mesh cover 40 to protect the seagrass seeds with a lighter specific gravity after germination, avoiding the seagrass seeds floating out of the wave protection sleeve 10, thus forming a secondary protection to promote the seagrass taking root smoothly, and further improving the survival rate of the seagrass. On the other hand, the dry mud cake 20 gradually becomes wet and soft and loosens from the wave protection sleeve 10 under seawater immersion along with the process of the seagrass taking root and growing stems and leaves. At this time, the wave protection sleeve 10 together with the mesh cover 40 can be lifted and recycled. This can not only reduce the consumption materials for seagrass planting and save costs, but also avoid the wave protection sleeve 10 and the mesh cover 40 being immersed in seawater for a long time and affecting the water quality, thus improving the environmental protection performance.

[0036] In some embodiments, refer to Figure 2 and Figure 3 . At the lower end of the wave protection sleeve 10, insertion teeth 11 for inserting into the underwater ground are circumferentially and spacedly distributed. A through-hole array 12 is provided on the peripheral wall of the wave protection sleeve 10. The dry mud cake 20 is located above the insertion teeth 11, and a water-permeable hole array 21 is provided on the dry mud cake 20.

[0037] The lower end of the wave protection sleeve 10 forms a zigzag structure based on a circle of insertion teeth 11. By inserting the insertion teeth 11 into the underwater ground, the placement stability of the wave protection sleeve 10 on the underwater ground is ensured, and the wave protection sleeve 10 is prevented from being washed away by the undersea water waves and moving. At the same time, the through-hole array 12 provided on the peripheral wall of the wave protection sleeve 10 enables seawater and fine sand to pass through the through-holes and enter the interior of the wave protection sleeve 10. On the one hand, the seawater impact force on the wave protection sleeve 10 can be reduced. On the other hand, the wet mud layer 30 can be covered with deposited fine sand, thereby preventing the wet mud layer 30 from being washed away by seawater and exposing the seagrass seeds, and further preventing underwater organisms from gnawing and eating the seagrass seeds, and improving the seagrass survival rate. The water-permeable hole array 21 provided on the dry mud cake 20 is beneficial to seawater passing through the water-permeable holes to contact the wet mud layer 30 on the one hand, so as to ensure the development environment of the seagrass seeds. On the other hand, it is beneficial to seawater soaking and softening the dry mud cake 20, so as to facilitate the later separation of the dry mud cake 20 from the wave protection sleeve 10, and prevent the soil at the root of the seagrass from being lifted up when the wave protection sleeve 10 is lifted upward when the wave protection sleeve 10 is removed after the seagrass has grown into seedlings, thereby improving the rooting stability of the seagrass after the wave protection sleeve 10 is removed, and further enhancing the seagrass survival rate. Since the dry mud cake 20 is embedded above the insertion teeth 11, when the insertion teeth 11 are inserted into the underwater ground, the dry mud cake 20 can be pressed against the underwater ground, and the dry mud cake 20 can be wetted and softened under seawater immersion and combined with the underwater ground, thereby ensuring the stability of the seagrass rooting and growing at the current position after the wave protection sleeve 10 is removed later.

[0038] In some possible implementation manners, as Figure 2 and Figure 3 shown, a plurality of annular grooves 13 are spacedly distributed on the inner wall of the wave protection sleeve 10 above the insertion teeth 11, and mud is filled in each annular groove 13, and the mud is bonded to the peripheral wall of the dry mud cake 20. By providing the annular grooves 13 in combination with the mud, the embedding reliability of the dry mud cake 20 in the wave protection sleeve 10 can be improved, thereby avoiding the phenomenon that the dry mud cake 20 falls off during the process of handling, transferring and placing the wave protection sleeve 10 in the seagrass planting area, and ensuring the smooth progress of the seagrass planting operation process.

[0039] Specifically, in the prefabrication stage, the seabed soil can be directly filled at the bottom of the wave protection sleeve 10. During this process, the seabed soil automatically enters each annular groove 13. After the seabed soil dries and solidifies to form the dry mud cake 20, it can be reliably connected to the inner wall of the wave protection sleeve 10 based on the protrusions embedded in the annular groove 13, thus avoiding the problem of the dry mud cake 20 falling off. At the same time, the part of the dry mud cake 20 embedded in the annular groove 13 softens under seawater immersion and loses the connection with the annular groove 13. Therefore, it can also ensure that the wave protection sleeve 10 can be smoothly lifted upwards without driving the soil at the roots of the seagrass.

[0040] Of course, the dry mud cake 20 can also be directly prefabricated using a mold to form a smooth peripheral wall. When installing the dry mud cake 20 into the wave protection sleeve 10, the peripheral wall of the dry mud cake 20 is coated with a slurry diluted with seabed soil, and the slurry is also brushed in each annular groove 13. After the slurry dries and solidifies, the dry mud cake 20 can be reliably bonded to the wave protection sleeve 10, thus avoiding the dry mud cake 20 from falling off. The dried slurry softens under seawater immersion, causing the dry mud cake 20 to loosen from the wave protection sleeve 10, facilitating the subsequent removal of the wave protection sleeve 10.

[0041] As a specific structure of the above-mentioned mesh cover 40, please refer to Figure 2 and Figure 3 , the mesh cover 40 includes an inner sleeve 41 and a mesh ring 42. The inner sleeve 41 is slidably inserted into the wave protection sleeve 10 from top to bottom. The mesh ring 42 is connected to the top end of the inner sleeve 41, and the inner circumferential surface of the mesh ring 42 encloses an avoidance hole. Among them, the inner sleeve 41 is used to press against the dry mud cake 20 when the wave protection sleeve 10 is lifted upwards. The top end of the inner sleeve 41 extends upwards out of the wave protection sleeve 10, and the top end of the inner sleeve 41 is adapted to be inserted into the lower end of the wave protection sleeve 10.

[0042] Through the insertion and cooperation of the inner sleeve 41 and the wave protection sleeve 10, the mesh ring 42 is covered on the top end of the wave protection sleeve 10. On the one hand, it is convenient for assembly and connection. On the other hand, when removing the wave protection sleeve 10, the lower end of the inner sleeve 41 can be used to press against the dry mud cake 20 (in fact, at this time, the dry mud cake 20 has been soaked and softened under seawater immersion, but there is still a certain adhesion and friction with the inner wall of the wave protection sleeve 10). At the same time, the wave protection sleeve 10 is lifted upwards, so that the dry mud cake 20 can be smoothly separated from the wave protection sleeve 10, thereby avoiding driving the soil (formed by the soaking and softening of the dry mud cake 20) at the roots of the seagrass during the process of lifting the wave protection sleeve 10 upwards, thus ensuring the stability of the soil around the roots of the seagrass.

[0043] Since the top end of the inner sleeve 41 extends out of the wave protection sleeve 10, it can be adopted as Figure 4The stacked manner shown stacks multiple wave protection sleeves 10 on top of each other. The top end of the lower inner sleeve 41 is inserted and matched with the bottom end of the upper wave protection sleeve 10 to ensure the stacking stability, thereby facilitating the handling and transfer of multiple stacked planting units. During the planting operation, multiple stacked planting units can be taken and released layer by layer to each planting point, thereby improving the planting operation efficiency.

[0044] In some embodiments, such as Figure 2 and Figure 3 shown, a limiting rib 14 is provided on the inner wall of the wave protection sleeve 10, and a limiting groove 411 is provided on the peripheral wall of the inner sleeve 41. The limiting groove 411 extends upward from the lower end of the inner sleeve 41 and is adapted for the limiting rib 14 to extend therein. The lower end of the inner sleeve 41 is provided with a pressing edge 412 that bends inward; wherein, when the inner sleeve 41 slides to the position where the limiting rib 14 abuts against the top of the limiting groove 411, the dry mud cake 20 is separated from the wave protection sleeve 10 under the pressing action of the pressing edge 412.

[0045] In order to prevent the inner sleeve 41 from continuing to slide down and fall off after the wave protection sleeve 10 is lifted upward until the dry mud cake 20 falls off from the lower end of the wave protection sleeve 10, the limiting rib 14 and the limiting groove 411 are provided to cooperate with each other here. When the dry mud cake 20 falls off from the lower end of the wave protection sleeve 10, the top of the limiting groove 411 can abut against the limiting rib 14, thereby restricting the inner sleeve 41 from continuing to slide down relative to the wave protection sleeve 10 and preventing the mesh cover 40 from falling off and being lost when the wave protection sleeve 10 is removed; in addition, since the dry mud cake 20 becomes wet and soft after being soaked in seawater, a pressing edge 412 that bends inward is provided at the lower end of the inner sleeve 41, and the dry mud cake 20 is pressed by the pressing edge 412, thereby increasing the force-bearing area of the dry mud cake 20 and ensuring the smooth separation process of the dry mud cake 20 from the wave protection sleeve 10.

[0046] It should be noted that a plurality of limiting grooves 411 are distributed at intervals along the circumferential direction of the peripheral wall of the inner sleeve 41, a through-hole array 12 is provided on the peripheral wall of the wave protection sleeve 10, and each row of through-holes of the through-hole array 12 respectively corresponds to one of the limiting grooves 411. A plurality of limiting ribs 14 are provided at intervals along the circumferential direction of the inner wall of the wave protection sleeve 10, and each limiting rib 14 respectively corresponds to one of the limiting grooves 411 (the number can be equal and in one-to-one correspondence, or the number of limiting ribs 14 is less than the number of limiting grooves 411). The corresponding cooperation of the plurality of limiting ribs 14 and the limiting grooves 411 can ensure the support stability of the inner sleeve 41 and prevent the inner sleeve 41 from twisting and falling off. At the same time, each limiting groove 411 can avoid blocking the through-hole array 12, thereby ensuring that seawater can pass through the through-hole array 12 and flow smoothly between the inside and outside of the wave protection sleeve 10, thereby reducing the impact force of seawater on the wave protection sleeve 10.

[0047] In some possible implementation manners, please refer to Figures 5 to 9, the recyclable wave - proof component for underwater seagrass planting further includes a lifting auxiliary tool 50, and the lifting auxiliary tool 50 is provided with a plurality of lifting heads; the top end of the wave - proof sleeve 10 is provided with a lifting flange 15 that turns over towards its periphery, and a plurality of card slots 151 are provided on the lifting flange 15; wherein, each lifting head is used for correspondingly clamping each card slot 151. By correspondingly clamping each card slot 151 on the lifting flange 15 that turns over at the top end of the wave - proof sleeve 10 with each lifting head of the lifting auxiliary tool 50, the wave - proof sleeve 10 can be lifted by means of the lifting auxiliary tool 50, so that the operator can carry out seagrass planting operations in a standing posture, which is beneficial to reducing labor intensity. At the same time, when there is seawater in the seagrass planting area, the wave - proof sleeve 10 can also be connected and extended underwater for planting operations by means of the lifting auxiliary tool 50, thereby eliminating the limitation that seagrass planting operations can only be carried out within the limited time when the underwater ground is exposed at low tide.

[0048] Specifically, the optional structure of the lifting auxiliary tool 50 in this embodiment is as Figure 6 shown. The lifting auxiliary tool 50 includes a disc frame 51 and a driving component 53; wherein, a plurality of lifting rods 52 are distributed at intervals along the circumferential direction of the wave - proof sleeve 10 on the disc frame 51. The lifting rods 52 are rotatably connected to the disc frame 51, and a lifting head is provided at the lower end of each lifting rod 52. The lifting head has a lifting state of rotating to be clamped with the card slot 151 and a release state of being disengaged from the card slot 151; the driving component 53 is arranged on the disc frame 51, and the output end of the driving component 53 is connected to each lifting rod 52, and is used to drive each lifting rod 52 to rotate synchronously to switch between the lifting state and the release state.

[0049] When carrying out seagrass planting, each lifting rod 52 is correspondingly passed through each card slot 151 on the lifting flange 15, and then the driving component 53 is used to drive each lifting rod 52 to rotate synchronously, so that the lifting heads at the lower ends of each lifting rod 52 are clamped with each card slot 151. At this time, the length of the lifting rod 52 is the sum of the heights of a plurality of wave - proof sleeves 10, as Figure 5As shown, for multiple wave protection sleeves 10 stacked on top of each other, the lifting head can be engaged with the card slot 151 on the lowermost wave protection sleeve 10, and multiple wave protection sleeves 10 can be lifted at once and placed at a planting point. Then, the driving component 53 drives each lifting rod 52 to rotate and switch to the release state. Then, the upper lifting tray 51 is lifted to disengage each lifting head from the lowermost wave protection sleeve 10. Then, the driving component 53 drives each lifting rod 52 to rotate again and switch to the lifting state, so that the lifting head is engaged with the card slot 151 of the second wave protection sleeve 10 from the bottom up. Then, other wave protection sleeves 10 except the lowermost one can be lifted together, and the lowermost wave protection sleeve 10 stays at the current planting point. Then, the remaining wave protection sleeves 10 are transferred to the next planting point together under the drive of the lifting auxiliary tool 50. Repeat the above actions to release another layer of wave protection sleeves 10 until all the wave protection sleeves 10 are placed. Thus, the seagrass planting process at multiple planting points is completed. The operation is simple and labor-saving, and the planting efficiency is high.

[0050] When removing the wave protection sleeve 10 after the seagrass takes root and grows into seedlings, refer to Figure 7 , hold the tray 51 and insert the lifting rod 52 into the sea water. Drive each lifting rod 52 to rotate through the driving component 53 so that each lifting head is correspondingly engaged with the card slot 151. Then, lifting the tray 51 upward can drive the wave protection sleeve 10 to move upward and disengage from the wet and softened dry mud cake 20. There is no need for the operator to bend down and enter the water to remove the wave protection sleeve 10, which can improve the removal efficiency of the wave protection sleeve 10 and reduce the labor intensity.

[0051] Optionally, in this embodiment, the structure of the driving component 53 is as shown in Figure 6 . The driving component 53 includes multiple swing arms 531, a driving handle 532, a turntable 533, and multiple connecting rods 534. Among them, multiple swing arms 531 are respectively connected to each lifting rod 52; the driving handle 532 is rotatably connected to the tray 51; the turntable 533 is rotatably connected to the tray 51 and is connected to the driving handle 532; multiple connecting rods 534 are circumferentially spaced apart along the turntable 533. One end of the connecting rod 534 is hinged to the edge of the turntable 533, and the other end is hinged to one of the swing arms 531.

[0052] By rotating the driving handle 532 to drive the turntable 533 to rotate, the turntable 533 drives each connecting rod 534 to pull each swing arm 531 to swing synchronously, so that the lifting rod 52 connected to the swing arm 531 rotates to switch between the lifting state and the release state. The operation is simple and convenient.

[0053] Specifically, as shown in Figure 6As shown, the above-mentioned tray rack 51 includes a top tray 511 and a bottom tray 512 that are spaced apart vertically. A space for accommodating the turntable 533, the connecting rod 534, and the swing arm 531 is formed between the top tray 511 and the bottom tray 512. Each lifting rod 52 passes through the top tray 511 and the bottom tray 512 and is rotatably engaged with both. The turntable 533 is rotatably connected to the bottom tray 512, and the driving handle 532 is rotatably connected to the top tray 511 and is located above the top tray 511. The rotating shaft of the driving handle 532 is fixedly connected to the rotating shaft of the turntable 533 (or they use the same rotating shaft).

[0054] The rotational engagement of the top tray 511 and the bottom tray 512, which are spaced apart vertically, with the lifting rods 52 can form two constraint points on the lifting rods 52, thereby improving the connection stability of the lifting rods 52. Utilizing the space between the top tray 511 and the bottom tray 512 to accommodate the drive assembly 53 can prevent the drive assembly 53 from colliding with the human body during movement, thereby improving the operation safety.

[0055] For the convenience of lifting operation, as Figure 7 shown, two lifting handles 513 are provided on the above-mentioned top tray 511, and the two lifting handles 513 are symmetrically arranged on both sides of the driving handle 532.

[0056] Exemplarily, referring to Figure 8 , a rib 521 extending radially along the lower end of the lifting rod 52 is provided, and the rib 521 forms a lifting head. The slot 151 extends radially along the anti-wave sleeve 10 to the edge of the lifting flange 15; wherein, when the lifting rod 52 rotates to a position where the extending direction of the rib 521 is consistent with that of the slot 151, a release state is formed.

[0057] The lower end of the lifting rod 52 forms an L-shaped lifting head based on the rib 521, and the slot 151 extends to the edge of the lifting flange 15 to form a U-shaped opening slot. When the lifting rod 52 rotates to a position where the extending direction of the rib 521 is consistent with that of the slot 151, the rib 521 can pass through the slot 151 from bottom to top (when releasing the anti-wave sleeve 10) or from top to bottom (when grasping the anti-wave sleeve 10). After the rib 521 passes through the slot 151 from top to bottom, the rotation of the lifting rod 52 can swing the rib 521 to the side of the slot 151, so that the rib 521 is hooked on the bottom surface position of the lifting flange 15 on the side of the slot 151. Thus, when the tray rack 51 is lifted upward, each lifting rod 52 drives the anti-wave sleeve 10 to be lifted together, and the structure is simple and stable.

[0058] In some embodiments, referring to Figure 7 , the lifting auxiliary tool 50 further includes a pressure relief ring 54. The pressure relief ring 54 is slidably connected to each lifting rod 52, and the pressure relief ring 54 has an operating rod 541 that slidably passes through the tray rack 51. The top end of the operating rod 541 passes through the tray rack 51 upward and is provided with a pressure handle 542; wherein, the pressure relief ring 54 is used to press down the mesh cover 40 when the anti-wave sleeve 10 is lifted upward.

[0059] It should be noted that the above-mentioned pressure-relieving ring 54 is used in cooperation with the inner sleeve 41 and the mesh cover 40 composed of the ring network. When the wave-proof sleeve 10 is removed after the seagrass takes root and grows into seedlings, each lifting rod 52 is clamped with the corresponding card slot 151, and then the operator presses down the pressing handle 542 to make the pressure-relieving ring 54 press against the edge of the mesh cover 40. At the same time, the operator pulls up the disc frame 51 (the lifting handle 513 is located on the side of the pressing handle 542, and the operator can press down the pressing handle 542 with the thumb while lifting the lifting handle 513 upwards with four fingers) to make the wave-proof sleeve 10 move upwards relative to the mesh cover 40 and separate from the dry mud cake 20. Thereby, it can be avoided that the soil around the seagrass roots is driven upwards during the lifting process of the wave-proof sleeve 10, so as to ensure the firmness of the seagrass roots after the wave-proof sleeve 10 is removed and improve the survival rate of seagrass planting.

[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Recyclable wave protection component for underwater seagrass planting, characterized in that, Comprising: A wave protection sleeve for plugging and fixing on the underwater ground in the seagrass planting area; A dry mud cake embedded at the bottom of the wave protection sleeve, which is used to loosen from the wave protection sleeve under seawater immersion, and a water permeable hole array is arranged on the dry mud cake; A wet mud layer laid on the upper surface of the dry mud cake, and the wet mud layer is used to fix seagrass seeds; A net cover arranged at the top of the wave protection sleeve, with an avoidance hole in the center, and the avoidance hole is used to avoid the growing seagrass stems and leaves; Wherein, both the dry mud cake and the wet mud layer are seabed mud; The net cover includes an inner sleeve and a net ring. The inner sleeve is slidably inserted into the wave protection sleeve from top to bottom. The net ring is connected to the top of the inner sleeve, and the inner ring surface of the net ring encloses the avoidance hole; the inner sleeve is used to press the dry mud cake when the wave protection sleeve is lifted upward; the top of the inner sleeve extends upward out of the wave protection sleeve, and the top of the inner sleeve is adapted to be inserted into the lower end of the wave protection sleeve; A limiting rib is arranged on the inner wall of the wave protection sleeve, and a limiting groove is arranged on the peripheral wall of the inner sleeve. The limiting groove extends upward from the lower end of the inner sleeve and is adapted for the limiting rib to extend into. The lower end of the inner sleeve is provided with a pressing edge bent inward; wherein, when the inner sleeve slides to the position where the limiting rib abuts against the top of the limiting groove, the dry mud cake is separated from the wave protection sleeve under the pressing action of the pressing edge.

2. The recyclable wave protection member for underwater seagrass planting according to claim 1, characterized in that, The lower end of the wave protection sleeve is circumferentially and spacedly distributed with inserting teeth for inserting into the underwater ground. A through hole array is arranged on the peripheral wall of the wave protection sleeve. The dry mud cake is located above the inserting teeth and a water permeable hole array is arranged on the dry mud cake.

3. The recyclable wave protection member for underwater seagrass planting according to claim 2, characterized in that, A plurality of annular grooves are spacedly distributed on the inner wall of the wave protection sleeve above the inserting teeth, and each annular groove is filled with slurry, and the slurry is bonded to the peripheral wall of the dry mud cake.

4. The recyclable wave protection member for underwater seagrass planting according to any one of claims 1 to 3, characterized in that, The recyclable wave protection component for underwater seagrass planting further includes a lifting auxiliary tool, and the lifting auxiliary tool is provided with a plurality of lifting heads; a lifting flanging turned outward is arranged at the top of the wave protection sleeve, and a plurality of clamping grooves are arranged on the lifting flanging; wherein, each lifting head is used to correspondingly clamp each clamping groove.

5. The seagrass underwater planting recyclable wave protection member according to claim 4, characterized in that, The lifting auxiliary tool includes: A disc frame, and a plurality of lifting rods are spacedly distributed along the circumference of the wave protection sleeve. The lifting rods are rotatably connected to the disc frame, and the lower end of each lifting rod is provided with the lifting head. The lifting head has a lifting state of rotating to be clamped with the clamping groove and a release state of disengaging from the clamping groove; A driving component is arranged on the disc frame, and the output end of the driving component is connected to each lifting rod for driving each lifting rod to rotate synchronously to switch between the lifting state and the release state.

6. The recyclable wave protection member for underwater seagrass planting according to claim 5, characterized in that, The driving component includes: A plurality of swing arms respectively corresponding to and connected to each lifting rod; A driving handle rotatably connected to the disc frame; A turntable rotatably connected to the disc frame and connected to the driving handle; A plurality of connecting rods are spacedly distributed along the circumference of the turntable. One end of the connecting rod is hinged to the edge of the turntable, and the other end is hinged to one of the swing arms.

7. The recyclable wave protection member for underwater seagrass planting according to claim 5, characterized in that, A rib extending radially along the lower end of the lifting rod is provided, and the rib forms the lifting head. The card slot extends radially along the wave-proof sleeve to the edge of the lifting flange. Wherein, when the lifting rod rotates until the extending directions of the rib and the card slot are consistent, the release state is formed.

8. The seaweed underwater planting recyclable wave prevention member according to claim 5, characterized in that, The lifting auxiliary tool further includes a pressure relief ring. The pressure relief ring is slidably connected to each of the lifting rods, and the pressure relief ring has an operating rod slidably passing through the disc rack. The top end of the operating rod passes upward through the disc rack and is provided with a pressure handle. Wherein, the pressure relief ring is used to downwardly press the mesh cover when the wave-proof sleeve is lifted upward.

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