Pinctada maxima reef propagation device and its culture method

Abstract

The application discloses a kind of for pearl oyster island reef proliferation device and its culture method, and the middle part of one end of left installation floating plate and right installation floating plate is equally spaced fixed installation with positioning frame, and the middle part between left installation floating plate and right installation floating plate is equally spaced installation with suspension cross bar, and the bottom of suspension cross bar is equally spaced fixed connection with lifting and breeding box, and the top end of suspension cross bar is equally spaced fixed connection with positioning stud, the present application utilizes positioning frame to limit suspension cross bar, so that lifting and breeding box suspension installation is more convenient and fast, and keep certain interval between each other, and utilize L type positioning long rod to limit the corner of lifting and breeding box, improve the suspension stability of lifting and breeding box, prevent lifting and breeding box in water with water flow sway influence pearl oyster normal attachment and growth, through the growth environment of stabilizing pearl oyster to promote the effect of growth, reduce pearl mussel mortality and spit rate, and then improve the production of pearl.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, specifically to a device for the propagation of pearl oysters on island reefs and its cultivation method. Background Technology

[0002] The giant pearl oyster, also known as the white-lipped pearl oyster, is mainly distributed in countries such as Australia, the Philippines, Malaysia, Indonesia, and Myanmar, as well as the coastal waters of the Leizhou Peninsula in southwestern Guangdong Province, the waters around Weizhou Island in Guangxi, the waters around Hainan Island, and the Xisha Islands in China. The giant pearl oyster is the ideal pearl oyster for cultivating high-quality "South Sea pearls". The South Sea pearls produced by it account for 46% of the total value of marine cultured pearl production, and it plays a dominant role in pearl production enterprises. It is the largest of the marine pearl oysters, and the pearls it cultivates are large, have good luster, and have a thick nacre layer. It is a precious pearl with strong commercial value. The methods of cultivating giant pearl oysters are usually suspended cage culture and bottom seeding culture. However, current methods for suspending pearl oysters in water lack a stable and secure structure, causing the suspending tank to sway easily with the water flow. In stormy weather, the large fluctuations in the seabed cause significant swaying of the suspending tank, which is detrimental to the growth of pearl oysters, leading to an increase in the rate of pearl nucleus expulsion and a decrease in overall pearl production. Therefore, this invention provides a device and method for the cultivation of pearl oysters on island reefs to improve the yield and quality of pearl farming. Summary of the Invention

[0003] This invention provides a device and method for the cultivation of pearl oysters on island reefs, which can effectively solve the problem mentioned in the background art where the pearl oysters are submerged in water for suspending cultivation. This lack of a stable and limiting structure causes the suspending box to sway easily with the water flow. In stormy weather, the large fluctuations in the seabed currents lead to a large swaying amplitude of the suspending box, which is not conducive to the growth of pearl oysters, resulting in an increased nucleus expulsion rate and a decrease in overall pearl production.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a device for the propagation of large pearl oysters on island reefs and its cultivation method, comprising an extension frame, one end of which is fixedly connected to a left mounting float, and the other end of which is fixedly connected to a right mounting float, wherein a high-safety hoisting mechanism is provided between the middle of the left mounting float and the right mounting float; The high-safety hoisting mechanism includes a positioning frame; Positioning frames are fixedly installed at equal intervals at the middle of one end of the left and right mounting floats, and suspension crossbars are fixedly installed at equal intervals between the middle of the left and right mounting floats. A hanging box is fixedly connected at equal intervals at the bottom of the suspension crossbar. The top of the suspension crossbar is fixedly connected with positioning studs at equal intervals. A protective block is installed at the top of the suspension crossbar corresponding to the positioning studs. An L-shaped positioning rod is fixedly installed at each of the four corners of the protective block. A pressing disc is installed on the top of the protective block. A connecting sleeve is fixedly connected to the bottom center of the pressing disc.

[0005] According to the above technical solution, a protective net is suspended between the bottom of both ends of the left and right mounting floats. A protective side net is fixedly connected between the two sides of the two protective nets. A support plate is fixedly connected to the bottom of the two protective side nets. A protrusion is fixedly connected to the middle of the support plate. An installation block is fixedly installed at the bottom of the middle of the left and right mounting floats. A locking stud is embedded in the middle of the installation block. A clamping rod is fixedly connected to the bottom of the locking stud. Fixed rods are fixedly installed between the bottom ends of the left and right mounting floats. Counterweight boxes are fixedly connected at equal intervals to the bottom of the protective net. Guide frames are fixedly installed at the bottom of the counterweight boxes. Movable plates are symmetrically and movably installed in the middle of the guide frames. A guide cylinder is fixedly connected to one end of the movable plate. A connecting column is fixedly connected to the top end of the movable plate. Control ropes are fixedly connected at equal intervals to the surface of the fixed rods.

[0006] According to the above technical solution, a positioning groove is provided in the middle of the positioning frame, and both ends of the suspension crossbar are movably embedded in the interior of the positioning groove.

[0007] According to the above technical solution, the protective block is located directly above the suspended curing box, and the L-shaped positioning rod is fitted to the corner of the suspended curing box. The positioning stud extends through the middle of the protective block, the bottom end of the pressing disc presses against the top end of the L-shaped positioning rod, and the connecting sleeve and the positioning stud are connected by threads.

[0008] According to the above technical solution, the locking stud and the mounting block are connected by threads, the protrusion has a positioning hole in the middle, and the bottom end of the clamping rod is inserted into the positioning hole.

[0009] According to the above technical solution, a counterweight stone is placed inside the counterweight box at the top of the movable plate. Movable grooves are opened on both inner walls of the guide frame. The two ends of the guide cylinder are respectively movably engaged inside the movable grooves. The control rope corresponds to the counterweight box, and the bottom end of the control rope is connected to two corresponding connecting columns.

[0010] According to the above technical solution, a light-blocking automatic control mechanism is installed between the tops of the left mounting float and the right mounting float; The automatic light-shielding control mechanism includes light-shielding strips; Light-shielding strips are equidistantly fitted between the tops of the left and right mounting floats. A series rope is fixedly connected between the middle sections of each light-shielding strip. An installation groove is formed at the center of the top of both the left and right mounting floats. A fixed long rack is embedded inside the installation groove. A guide groove is formed at one end of the right mounting float. A guide block is movably engaged in the middle of the guide groove. A mounting base is fixedly connected to the top of the guide block. A drive motor is fixedly installed at the top of the mounting base. A winding rod is fixedly connected to the output end of the drive motor. Drive gears are symmetrically fixedly installed at both ends of the winding rod. A protective frame is fixedly installed at one end of the top of both the left and right mounting floats. A battery pack is fixedly installed at the top of the protective frame located on the top of the right mounting float. An inclined fixing seat is installed at equal intervals on the top of the protective frame located on one side of the battery pack. A photovoltaic panel is installed on the top of the inclined fixing seat. A cable tray is opened at one end of the protective frame.

[0011] According to the above technical solution, adjacent light-shielding strips are connected to each other by a series rope, and one end of the series rope is connected to a winding rod; The two drive gears are respectively positioned opposite the two mounting grooves, and the two drive gears respectively mesh with the two fixed long racks.

[0012] According to the above technical solution, the input and output terminals of the battery pack are connected to the output terminal of the photovoltaic panel and the input terminal of the drive motor, respectively, and the connection line between the battery pack and the drive motor passes through the wiring trough.

[0013] According to the above technical solution, a method for the cultivation of pearl oysters on island reefs includes the following steps: S1. Positioning: Use the extension frame to fix it at the island and reef, and extend the left and right installation floats to the water surface near the island and reef to determine the location for the large pearl oysters to be suspended and cultivated. S2, Suspended culture: Take the suspended culture box containing the large pearl oysters, fix it to the bottom of the suspension bar, and insert both ends of the suspension bar into the positioning frame so that the suspended culture box is suspended in the water; S3. Stabilize: Use protective blocks and L-shaped positioning rods to tightly fit and limit the edges of the hanging box, and press the disc firmly against the top of the L-shaped positioning rod; S4. Protection: The top of the protective net and the protective side net are fixedly connected and submerged in water to surround the outside of the hanging box, thus isolating and protecting the hanging box and the growth environment of the pearl oyster. S5. Light control: The drive motor can rotate the winding rod and move it along the guide groove to wind and unwind the light-blocking strip, so that the top of the hanging curing box is covered and directly exposed, thereby controlling the light.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a scientific and reasonable structure and is safe and convenient to use. 1. Equipped with a high-safety suspension mechanism, the suspension crossbars are limited by positioning frames, making the suspension installation of the suspension boxes more convenient and quick, while maintaining a certain distance between them. The corners of the suspension boxes are limited by L-shaped positioning rods, which improves the suspension stability of the suspension boxes and prevents them from swaying in the water with the water flow, thus affecting the normal attachment and growth of the pearl oysters. By stabilizing the growth environment of the pearl oysters, it promotes growth and thus increases pearl production. At the same time, the connecting sleeve and the positioning stud work together to determine the position of the pressing disc, so that the pressing disc can be pressed tightly against the top of the L-shaped positioning rod, pressing and stabilizing the position of the protective block, improving the stability of the L-shaped positioning rod, and preventing the protective block and the L-shaped positioning rod from shaking and falling off in strong winds and waves.

[0015] 2. By using two protective nets and two protective side nets to surround the outside of the hanging culture box, the hanging culture box is isolated and protected, preventing harmful organisms such as fish in the water from harming the pearl oysters, improving the safety of the overall growth and cultivation environment of the pearl oysters, reducing the chance of them being eaten, and increasing the overall pearl production. Meanwhile, the counterweight box acts as a counterweight for the protective net, causing it to unfold downwards and reducing the impact of water flow on the net. The support plate expands and stretches the protective side net, keeping it flat and unfolded. The locking studs and mounting blocks work together to position the clamping rod, causing its bottom to press against the support plate, thus stabilizing it. Consequently, both the protective net and the protective side net are provided with certain limiting support, ensuring they remain unfolded to protect the suspended enclosure and prevent water flow fluctuations from deforming the net and side net, thus affecting the normal protection range.

[0016] 3. The bottom of the counterweight box is sealed and protected by a movable plate, allowing the counterweight stones to remain inside the box and ensuring proper counterweight stability. The position of the movable plate can be adjusted using control ropes, providing sufficient space for the counterweight stones inside the box to fall, thereby reducing the weight at the bottom of the protective net. This greatly facilitates the retrieval of the protective net by workers and prevents excessive workload during retrieval due to the weight of the counterweight stones. The operation is extremely simple.

[0017] 4. An automated shading control mechanism is installed, which uses a drive gear and a fixed long rack to drive the winding rod. The guide groove limits and guides the guide block and drive motor, allowing the drive motor to rotate the winding rod. The drive motor can move along the guide groove, and the winding rod and the connecting rope can be used to wind and unwind the shading strip. This greatly facilitates the control of shading and light exposure. The use of automated control to replace manual laying effectively improves the efficiency of shading construction.

[0018] 5. Photovoltaic panels are exposed to the outside to absorb sunlight and convert it into electrical energy, which is stored inside the battery pack to power the drive motor. There is no need to connect to the external power supply line, which improves the utilization rate of resources and reduces the workload caused by external wiring. It also prevents the complex wiring caused by wiring connections. The wiring trough guides the connected wires and provides sufficient space for the wiring to run when the drive motor moves, making it safer and more convenient to use.

[0019] In summary, by combining a high-safety hanging culture mechanism with an automated shading control mechanism, and with protective nets and side nets surrounding the outside of the hanging culture box, sufficient safe space is provided for pearl oyster production, creating favorable conditions for pearl proliferation. Simultaneously, the shading strips optimize the growth environment of the pearl oysters, reducing the adverse effects of sunlight. The control operation is simple, allowing for frequent adjustments based on sunlight and growth environment requirements. Both mechanisms improve the growth environment of the pearl oysters, promoting pearl growth from multiple aspects to achieve the desired proliferation effect. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0021] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the winding long rod of the present invention; Figure 3 This is a schematic diagram of the installation structure of the clamping rod of the present invention; Figure 4 This is a schematic diagram of the installation structure of the pressing disc of the present invention; Figure 5 This is a schematic diagram of the high-safety hoisting mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the locking stud of the present invention; Figure 7This is a schematic diagram of the installation structure of the movable plate of the present invention; Figure 8 This is a schematic diagram of the structure of the automatic light-shielding control mechanism of the present invention; Figure 9 This is a schematic diagram of the installation structure of the guide block of the present invention; Figure 10 This is a flowchart of the method steps of the present invention; The diagram labels are: 1. Extension frame; 2. Left mounting float; 3. Right mounting float. 4. High-safety hoisting mechanism; 401. Positioning frame; 402. Suspension crossbar; 403. Hoisting box; 404. Positioning stud; 405. Protective block; 406. L-shaped positioning rod; 407. Pressing disc; 408. Connecting sleeve; 409. Protective net; 410. Protective side net; 411. Support plate; 412. Protrusion; 413. Mounting block; 414. Locking stud; 415. Pressing rod; 416. Fixing rod; 417. Counterweight box; 418. Guide frame; 419. Movable plate; 420. Guide cylinder; 421. Connecting column; 422. Control rope; 5. Automated shading control mechanism; 501. Shading strip; 502. Connecting rope; 503. Mounting groove; 504. Fixed long rack; 505. Guide groove; 506. Guide block; 507. Mounting base; 508. Drive motor; 509. Winding long rod; 510. Drive gear; 511. Protective long frame; 512. Battery pack; 513. Inclined fixing base; 514. Photovoltaic panel; 515. Cable tray. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figure 1-9 As shown, the present invention provides a technical solution, a device for the propagation of pearl oysters on island reefs, including an extension frame 1, a left mounting float 2 fixedly connected to one end of the extension frame 1, a right mounting float 3 fixedly connected to the other end of the extension frame 1, and a high-safety hoisting mechanism 4 provided between the middle of the left mounting float 2 and the right mounting float 3. The high-safety hoisting mechanism 4 includes a positioning frame 401, a suspension crossbar 402, a hoisting box 403, a positioning stud 404, a protective block 405, an L-shaped positioning long rod 406, a pressing disc 407, a connecting sleeve 408, a protective net 409, a protective side net 410, a support long plate 411, a protrusion 412, a mounting block 413, a locking stud 414, a pressing long rod 415, a fixing round rod 416, a counterweight box 417, a guide frame 418, a movable plate 419, a guide cylinder 420, a connecting column 421, and a control rope 422. A positioning frame 401 is fixedly installed at equal intervals at the middle of one end of the left mounting float 2 and the right mounting float 3. A suspension crossbar 402 is installed at equal intervals between the middle of the left mounting float 2 and the right mounting float 3. A positioning groove is provided in the middle of the positioning frame 401. Both ends of the suspension crossbar 402 are movably embedded in the interior of the positioning groove. A hanging box 403 is fixedly connected at equal intervals to the bottom of the suspension crossbar 402. A positioning stud 404 is fixedly connected at equal intervals to the top of the suspension crossbar 402. A protective block 405 is fitted to the top of the suspension crossbar 402 at the corresponding position of the positioning stud 404. An L-shaped positioning rod 406 is fixedly installed at each of the four corners of the protective block 405. The protective block 405 is located directly above the suspended maintenance box 403. The L-shaped positioning rods 406 fit against the corners of the suspended maintenance box 403. A pressing disc 407 is installed on the top of the protective block 405. A connecting sleeve 408 is fixedly connected to the center of the bottom end of the pressing disc 407. The positioning stud 404 moves through the center of the protective block 405. The bottom end of the disc 407 is pressed against the top end of the L-shaped positioning rod 406. The connecting sleeve 408 and the positioning stud 404 are connected by threads. The positioning frame 401 limits the suspension crossbar 402, making the hanging box 403 easier and faster to install. It also maintains a certain distance between each other. The L-shaped positioning rod 406 limits the corners of the hanging box 403, improving the suspension stability of the hanging box 403 and preventing it from swaying in the water and affecting the normal attachment and growth of the pearl oyster. By stabilizing the growth environment of the pearl oyster, it promotes growth and thus increases pearl production. At the same time, the connecting sleeve 408 and the positioning stud 404 cooperate to determine the position of the pressing disc 407, so that the pressing disc 407 can be pressed tightly against the top of the L-shaped positioning rod 406, pressing and stabilizing the position of the protective block 405, improving the stability of the L-shaped positioning rod 406, and preventing the protective block 405 and the L-shaped positioning rod 406 from shaking and falling off in strong winds and waves; Protective nets 409 are suspended between the bottom ends of both ends of the left and right floating plates 2 and 3. Protective side nets 410 are fixedly connected to the sides of both protective nets 409. Support plates 411 are fixedly connected to the bottom ends of both side nets 410. A protrusion 412 is fixedly connected to the middle of the support plate 411. Mounting blocks 413 are fixedly installed at the bottom middle of both the left and right floating plates 2 and 3. Locking studs 414 are embedded in the middle of each mounting block 413. A clamping rod 415 is fixedly connected to the bottom end of each locking stud 414. The locking studs 414 and mounting blocks 413 are connected by threads. A positioning hole is opened in the middle of the protrusion 412, and the bottom end of the clamping rod 415 is inserted into the positioning hole. The two protective nets 409 and two protective side nets 410 surround the outside of the suspended enclosure 403, providing isolation and protection against water damage. The system reduces the harm caused to the pearl oyster by predatory organisms such as fish, improves the overall safety of the pearl oyster's growth and aquaculture environment, and reduces the chance of being eaten. At the same time, the counterweight box 417 acts as a counterweight for the protective net 409, causing it to unfold downwards and reducing the impact of water flow on the protective net 409. The support plate 411 helps to stretch and extend the protective side net 410, keeping it in a flat and unfolded state. The locking stud 414 and the mounting block 413 work together to determine the position of the clamping rod 415, so that the bottom of the clamping rod 415 presses against the support plate 411, which provides a stable positioning for the support plate 411. Thus, both the protective net 409 and the protective side net 410 are given certain limiting support, keeping them in an unfolded state to protect the hanging tank 403 and prevent water flow fluctuations from causing deformation of the protective net 409 and the protective side net 410, thus affecting the normal protection range. Fixed rods 416 are fixedly installed between the bottom ends of both ends of the left and right floating plates 2 and 3. A counterweight box 417 is fixedly connected at equal intervals to the bottom of the protective net 409. A guide frame 418 is fixedly installed at the bottom of the counterweight box 417. A movable plate 419 is symmetrically and movably installed in the middle of the guide frame 418. A guide cylinder 420 is fixedly connected to one end of the movable plate 419, and a connecting column 421 is fixedly connected to the top end of the movable plate 419. Control ropes 422 are fixedly connected at equal intervals to the surface of the fixed rods 416. A counterweight stone is placed inside the counterweight box 417 at the top of the movable plate 419. Movable grooves are opened on both inner walls of the guide frame 418. The two ends of the guide cylinder 420 are respectively movably engaged with... Inside the movable trough, the control rope 422 corresponds to the counterweight box 417. The bottom end of the control rope 422 is connected to two corresponding connecting posts 421. The bottom of the counterweight box 417 is sealed and protected by the movable plate 419, so that the counterweight stones can be stored inside the counterweight box 417, which plays a normal role in stabilizing the counterweight. The position of the movable plate 419 can be adjusted by the control rope 422, providing enough space for the counterweight stones inside the counterweight box 417 to fall, thereby reducing the weight at the bottom of the protective net 409. This greatly facilitates the workers in retrieving the protective net 409 and prevents the counterweight stones from being too heavy, which would cause excessive labor intensity during retrieval. The operation method is extremely simple. An automatic light-blocking control mechanism 5 is installed between the tops of the left mounting plate 2 and the right mounting plate 3; The automatic shading control mechanism 5 includes a shading strip 501, a series rope 502, a mounting groove 503, a fixed long rack 504, a guide groove 505, a guide block 506, a mounting base 507, a drive motor 508, a winding long rod 509, a drive gear 510, a protective long frame 511, a battery pack 512, an inclined fixing base 513, a photovoltaic panel 514, and a wiring trough 515; Light-shielding strips 501 are equidistantly fitted between the tops of the left mounting float 2 and the right mounting float 3. A series rope 502 is fixedly connected between the middle of each light-shielding strip 501. An installation groove 503 is opened at the middle of the top of each of the left mounting float 2 and the right mounting float 3. A fixed long toothed rack 504 is embedded in the inside of the installation groove 503. A guide groove 505 is opened at one end of the right mounting float 3. A guide block 506 is movably engaged in the middle of the guide groove 505. A mounting base 507 is fixedly connected to the top of the guide block 506. A drive motor 508 is fixedly installed at the top of the mounting base 507. A winding rod 509 is fixedly connected to the output end of the drive motor 508. Drive gears 510 are symmetrically fixedly installed at both ends of the winding rod 509. Adjacent light-shielding strips 501 are connected to each other by a series rope 502. One end of the series rope 502 is connected to the winding rod 509. Two drive gears 510 correspond to the positions of two mounting grooves 503 respectively, and the two drive gears 510 mesh with two fixed long racks 504 respectively. The drive gears 510 and the fixed long racks 504 work together to drive the winding rod 509. The guide groove 505 limits and guides the guide block 506 and the drive motor 508, so that the drive motor 508 can drive the winding rod 509 to rotate. The drive motor 508 can move along the guide groove 505. Then, the winding rod 509 and the connecting rope 502 can be used to wind up and unwind the light-blocking strip 501, which greatly facilitates the operation of controlling the light blocking and releasing the light. The use of automated control drive to replace manual laying effectively improves the work efficiency of light blocking construction. A protective frame 511 is fixedly installed at one end of the top of both the left mounting float 2 and the right mounting float 3. A battery pack 512 is fixedly installed at the top of the protective frame 511 located at the top of the right mounting float 3. An inclined mounting base 513 is installed at equal intervals on the top of the protective frame 511, located on one side of the battery pack 512. A photovoltaic panel 514 is installed on the top of the inclined mounting base 513. A wiring groove 515 is opened at one end of the protective frame 511. The input and output ends of the battery pack 512 are connected to the output end of the photovoltaic panel 514 and the input end of the drive motor 508, respectively. The connection line between 512 and drive motor 508 passes through the wiring trough 515. The photovoltaic panel 514 is exposed to the outside to absorb sunlight and convert it into electrical energy, which is stored inside the battery pack 512 to power the drive motor 508. There is no need to connect to the external power supply line, which improves the utilization rate of resources and reduces the workload caused by external wiring connections. It also prevents the complex wiring caused by wiring connections. The wiring trough 515 guides the connected lines and provides sufficient space for the wiring to run when the drive motor 508 moves, making it safer and more convenient to use. like Figure 10 As shown, a method for the cultivation of pearl oysters on island reefs includes the following steps: S1. Positioning: Using the extension frame 1, fix it at the island and reef, and extend the left installation float 2 and the right installation float 3 to the water surface near the island and reef to determine the location for the large pearl oyster suspension cultivation. S2, Suspended culture: Take the suspended culture box 403 containing the large pearl oysters and fix it to the bottom of the suspension crossbar 402. The two ends of the suspension crossbar 402 are embedded in the positioning frame 401, so that the suspended culture box 403 is suspended in the water. S3. Stabilization: The protective block 405 and the L-shaped positioning rod 406 are used to tightly limit the edge of the hanging box 403, and the pressing disc 407 is pressed tightly on the top of the L-shaped positioning rod 406. S4. Protection: The top of the protective net 409 and the protective side net 410 are fixedly connected and submerged in water to surround the outside of the hanging box 403, thus isolating and protecting the growth environment of the hanging box 403 and the pearl oyster. S5. Light control: The drive motor 508 can drive the winding rod 509 to rotate and move along the guide groove 505 to wind and unwind the light-shielding strip 501, so that the top of the hanging box 403 is covered and directly exposed, thereby realizing the operation of controlling the light.

[0024] The working principle and usage process of this invention are as follows: First, the extension frame 1 is fixed at the edge of the island reef, allowing the left mounting float 2 and the right mounting float 3 to extend forward to the water surface. The suspension crossbar 402 is then removed, with a suspending box 403 suspended at its bottom. The suspending box 403 contains large pearl oysters. The two ends of the suspension crossbar 402 are aligned with the positioning frame 401, allowing the suspending box 403 to be suspended between the left mounting float 2 and the right mounting float 3 and submerged in the water. The worker then removes the protective block 405 and lowers it from above. The L-shaped positioning rod 406 is installed at the bottom so that it fits tightly against the corner of the hanging box 403, which helps to limit and stabilize the hanging box 403. The middle part of the protective block 405 passes through the positioning stud 404 and is placed on top of the hanging box 403. Then, the pressing disc 407 is used to cover it. The connecting sleeve 408 is rotated and installed on the positioning stud 404. The bottom end of the pressing disc 407 presses against the top end of the L-shaped positioning rod 406, which helps to press and stabilize the L-shaped positioning rod 406 and prevent it from loosening. Then, the workers fixed two protective nets 409 between the ends of the left and right floating plates 2 and 3, respectively. Two protective side nets 410 were fixedly connected to the two protective nets 409. The two protective nets 409 and the two protective side nets 410 were interlocked and surrounded the outside of the suspended enclosure 403, providing isolation and protection. A counterweight box 417 was fixedly connected to the bottom of the protective net 409, and its bottom movable plate 419 remained horizontal. Before sinking, some counterweight stones were placed inside the counterweight box 417 and piled on top of the movable plate 419, providing counterweight stability to the protective net 409. The bottom of the protective side nets 410 was fixedly connected to... With the support plate 411 attached, when submerged in water, the clamping rod 415 passes through the middle of the mounting block 413, and the locking stud 414 rotates and is fixedly connected to the mounting block 413. The bottom end of the clamping rod 415 is inserted into the middle of the support plate 411, which plays a role in stabilizing and positioning the support plate 411, improving the stability of the protective side net 410, thereby improving the safety of the outside of the hanging box 403, isolating fish and other harmful fish in the water from the pearl oyster, and reducing losses during the pearl oyster farming process. At the same time, the connecting post 421 at the top of the movable plate 419 is connected to the bottom end of the control rope 422, and the top of the control rope 422 is fixed to the fixed round rod 416. During the growth and pearl production process of the pearl oyster, light control is extremely important. When the light is too strong, the pearl oyster needs to be protected from light. The drive motor 508 is started, causing it to rotate the winding rod 509 and the drive gear 510. The drive gear 510 meshes with the fixed long rack 504, acting as a limit and guide for the drive motor 508. While rotating the winding rod 509, it moves forward along the guide groove 505, unfolding the light-blocking strip 501 wrapped around the surface of the winding rod 509, covering the left mounting float. Between plate 2 and right-mounted floating plate 3, the light from the top of the hanging box 403 is blocked, which protects the pearl oyster. At the same time, the pearl oyster also needs a certain amount of light to grow. The drive motor 508 is controlled periodically to drive the winding rod 509 to rotate and move along the guide groove 505 to wind up the unfolded light-blocking strip 501. Appropriate light can promote the formation and growth of pearls. The control method is extremely simple. The photovoltaic panel 514 and the battery pack 512 can absorb sunlight and convert it into energy for the use of the drive motor 508. When harvesting pearls, it is also necessary to retrieve and maintain the protective net 409 and the protective side net 410. The counterweight stones inside the counterweight box 417 make the overall weight of the protective net 409 quite large, making it difficult to retrieve. Workers can hold the control rope 422 and pull upwards, using the connecting column 421 to pull one end of the movable plate 419 upwards. The guide column 420 and the guide frame 418 work together to make one end of the movable plate 419 tilt upwards and move, while the other end gradually approaches the middle, creating a certain gap between it and the bottom of the counterweight box 417. When the movable plate 419 moves, it will tilt the counterweight stones on top of it, causing them to sink into the water, thereby reducing the overall weight of the protective net 409 and reducing the overall labor intensity of net retrieval.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, and are not limited to its use. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for propagating pearl oysters on island reefs, comprising an extension frame (1), characterized in that: One end of the extension frame (1) is fixedly connected to a left mounting float (2), and the other end of the extension frame (1) is fixedly connected to a right mounting float (3). A high-safety hoisting mechanism (4) is provided between the middle of the left mounting float (2) and the right mounting float (3). The high-safety hoisting mechanism (4) includes a positioning frame (401); Positioning frames (401) are fixedly installed at equal intervals in the middle of the left mounting float (2) and the right mounting float (3). Suspension crossbars (402) are fixedly installed at equal intervals between the middle of the left mounting float (2) and the right mounting float (3). Suspension boxes (403) are fixedly connected at equal intervals at the bottom of the suspension crossbars (402). The top of the suspension crossbar (402) is fixedly connected with positioning studs (404) at equal intervals. A protective block (405) is fitted to the top of the suspension crossbar (402) at the position corresponding to the positioning studs (404). An L-shaped positioning rod (406) is fixedly installed at each of the four corners of the protective block (405). A pressing disc (407) is installed on the top of the protective block (405). A connecting sleeve (408) is fixedly connected to the middle of the bottom end of the pressing disc (407). Protective nets (409) are suspended between the bottom ends of the left mounting float (2) and the right mounting float (3). Protective side nets (410) are fixedly connected between the two sides of the two protective nets (409). Supporting long plates (411) are fixedly connected to the bottom ends of the two protective side nets (410). A protrusion (412) is fixedly connected to the middle of the supporting long plate (411). Mounting blocks (413) are fixedly installed at the bottom ends of the middle of the left mounting float (2) and the right mounting float (3). Locking studs (414) are embedded in the middle of the mounting blocks (413). Pressing long rods (415) are fixedly connected to the bottom ends of the locking studs (414). Fixed rods (416) are fixedly installed between the bottom ends of the left and right floating plates (2 and 3). A counterweight box (417) is fixedly connected at equal intervals to the bottom of the protective net (409). A guide frame (418) is fixedly installed at the bottom of the counterweight box (417). A movable plate (419) is symmetrically and movably installed in the middle of the guide frame (418). A guide cylinder (420) is fixedly connected to one end of the movable plate (419). A connecting column (421) is fixedly connected to one end of the top of the movable plate (419). Control ropes (422) are fixedly connected at equal intervals to the surface of the fixed rods (416). The protective block (405) is located directly above the hanging box (403), and the L-shaped positioning rod (406) fits into the corner of the hanging box (403); The positioning stud (404) is movably inserted through the middle of the protective block (405), the bottom end of the pressing disc (407) is pressed against the top end of the L-shaped positioning rod (406), and the connecting sleeve (408) and the positioning stud (404) are connected by threads.

2. The device for propagating pearl oysters on island reefs according to claim 1, characterized in that, The positioning frame (401) has a positioning groove in the middle, and both ends of the suspension crossbar (402) are movably embedded in the positioning groove.

3. The device for propagating pearl oysters on island reefs according to claim 1, characterized in that, The locking stud (414) and the mounting block (413) are connected by threads. The protrusion (412) has a positioning hole in the middle. The bottom end of the clamping rod (415) is inserted into the positioning hole.

4. The device for propagating pearl oysters on island reefs according to claim 1, characterized in that, The counterweight box (417) has a counterweight stone placed at the top of the movable plate (419) inside. The two inner walls of the guide frame (418) are provided with movable grooves. The two ends of the guide cylinder (420) are respectively movably engaged in the interior of the movable groove. The control rope (422) corresponds to the counterweight box (417). The bottom end of the control rope (422) is connected to two corresponding connecting columns (421).

5. The device for propagating pearl oysters on island reefs according to claim 4, characterized in that, A light-blocking automatic control mechanism (5) is installed between the tops of the left mounting float (2) and the right mounting float (3); The automatic shading control mechanism (5) includes a shading strip (501). A light-shielding strip (501) is equidistantly fitted between the tops of the left mounting float (2) and the right mounting float (3). A series rope (502) is fixedly connected between the middle parts of the light-shielding strip (501). An installation groove (503) is opened at the middle of the top of the left mounting float (2) and the right mounting float (3). A fixed long rack (504) is embedded in the inside of the installation groove (503). A guide groove (505) is opened at one end of the right mounting float (3). A guide block (506) is movably engaged in the middle of the guide groove (505). A mounting base (507) is fixedly connected to the top of the guide block (506). A drive motor (508) is fixedly installed at the top of the mounting base (507). A winding rod (509) is fixedly connected to the output end of the drive motor (508). Drive gears (510) are symmetrically fixedly installed at both ends of the winding rod (509). A protective frame (511) is fixedly installed at one end of the top of both the left mounting float (2) and the right mounting float (3). A battery pack (512) is fixedly installed at the top of the protective frame (511) located at the top of the right mounting float (3). An inclined fixing seat (513) is installed at equal intervals at one side of the battery pack (512) on the top of the protective frame (511). A photovoltaic panel (514) is installed on the top of the inclined fixing seat (513). A cable tray (515) is opened at one end of the protective frame (511).

6. A device for propagating pearl oysters on island reefs according to claim 5, characterized in that, The adjacent light-shielding strips (501) are connected to each other by a connecting rope (502), one end of which is connected to a winding rod (509); The two drive gears (510) are respectively positioned opposite to the two mounting grooves (503), and the two drive gears (510) respectively mesh with the two fixed long racks (504).

7. A device for propagating pearl oysters on island reefs according to claim 5, characterized in that, The input and output terminals of the battery pack (512) are connected to the output terminal of the photovoltaic panel (514) and the input terminal of the drive motor (508), respectively, and the connection line between the battery pack (512) and the drive motor (508) passes through the wiring trough (515).

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