Multi-cage pearl oyster cage cleaning device and pearl oyster culture raft using the same

Abstract

The utility model discloses a one-time many cage pearl mussel cage cleaning device, including water supply pipe network, the water supply pipe network leads out many hangers on, can be driven to rotate by water power, is equipped with at least two water spray holes, and each hanger pipe is connected with a rotary spray head, and water supply power part, water supply power part with water supply pipe network is connected, and water supply pipe network supplies the water with pressure cleaning to water supply pipe network. When using, water supply power part supplies the water with pressure cleaning to water supply pipe network, and water supply pipe network distributes the water with pressure cleaning to each hanger pipe, and the water with pressure cleaning in hanger pipe is rotated 360 degrees outward through rotary spray head, that is, rotates 360 degrees outward through at least two water spray holes on the side of rotary spray head, and the cleaning water that sprays washes pearl mussel cage. The utility model has can clean many mussel cages etc. features.

Description

Technical Field

[0001] This utility model belongs to the field of shell cage cleaning technology, specifically relating to a device for cleaning multiple pearl oyster cages at once and a floating raft for pearl oyster farming using the same. Background Technology

[0002] Pearl oyster cages are the habitats for pearl oysters. They come in round and square shapes and are made of steel or plastic frames (40 cm in diameter or side length, 10-15 cm high) and woven wire mesh, with a volume of approximately 0.016 m³. During cultivation, pearl oysters are placed inside and suspended from the booms or ropes of a floating raft in the bay. However, as the cultivation time increases, the cages accumulate floating mud and attached organisms such as small oysters, sponges, sea squirts, calcareous worms, and polychaetes. This mud and attached organisms clog the cage mesh, hindering water flow, reducing dissolved oxygen and the availability of food, leading to oyster mortality. Furthermore, these attached organisms compete with the oysters for food, easily causing malnutrition. The attached polychaetes, such as *Gnaphalium affine* and *Gnaphalium affine*, secrete acidic substances that corrode the shells, damaging them and even penetrating the mantle, resulting in slow growth or death of the pearl oysters, thus affecting pearl production and quality. Therefore, during pearl oyster cultivation, it is essential to clean the cages regularly or replace them promptly.

[0003] Currently, my country's marine pearl farming involves three stages: larvae cultivation, mother oyster cultivation, and pearl-producing oyster cultivation. In the larvae cultivation stage, larvae with a shell length of 3mm are stocked and raised to a shell length of 3cm. Mother oyster cultivation and pearl-producing oyster cultivation belong to the adult oyster cultivation stage, where larvae with a shell length of 3cm or more are stocked. For larvae cultivation, the mesh size of the cages is small, and the frequency of cage cleaning depends on the amount of floating mud and predators, generally once every 2-5 days. During the cultivation period, the larvae are separated into cages 3-4 times until they reach a shell length of 3cm. In the adult oyster cultivation stage, larvae with a shell length of 3cm or more are stocked, and generally not separated. The cages are cleaned once every 7-10 days. When cleaning the cages, the cultivation cages are collected and rinsed with a high-pressure water gun. When changing cages, the pearl oysters are removed from the cages, the byssal threads are cut with a knife, and any attached substances are removed from the oyster's body surface before replacing the cage. This cage cleaning operation requires retracting the shell cages, and only one cage can be cleaned at a time. The cleaning is done from the outside in, and the floating mud and attached organisms on the shell cages will be washed into the cages, requiring multiple strong rinses. This cage changing operation often damages the pearl oyster's byssal glands, shell edges, and bite, affecting the growth of the oysters and pearl production. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a device for cleaning multiple pearl oyster cages at once.

[0005] In order to achieve the above-mentioned objectives of this utility model, the following technical solution is adopted: A device for cleaning multiple pearl oyster cages at once includes a water supply network with multiple hanging pipes extending from it; a rotating nozzle capable of rotating by water power and having at least two spray holes, with each hanging pipe connected to a rotating nozzle; and a water supply power unit connected to the water supply network to supply pressurized cleaning water to the network.

[0006] Furthermore, the water supply network includes multiple branch pipes and a main pipe, with the branch pipes connected to the main pipe, and multiple hanging pipes leading out from each branch pipe.

[0007] Furthermore, the present invention provides a multi-cage pearl oyster cage cleaning device, which also includes a water valve, with a water valve installed on one end of each branch pipe near the main pipe.

[0008] Furthermore, the water pressure of the cleaning water is 0.5 to 1.0 MPa.

[0009] Furthermore, the water supply power component includes a water pump, a water delivery pipe, and a water extraction pipe. One end of the water delivery pipe is connected to the main pipe, and the other end is connected to the outlet end of the water pump. The water extraction pipe is connected to the inlet end of the water pump.

[0010] A pearl oyster farming raft includes the aforementioned multi-cage pearl oyster cleaning device.

[0011] Furthermore, the pearl oyster farming raft includes a support frame, with multiple suspension members installed between adjacent parallel support frames, the multiple suspension members being arranged at intervals; multiple oyster cages, each oyster cage being suspended from the suspension members by a hanging rope, each oyster cage being equipped with a hanging pipe and a rotating nozzle, the rotating nozzle being inserted into the oyster cage; and floats, with at least one float provided at the bottom of each support frame; wherein, each hanging pipe has a redundant length and is loosely and tightly installed on the corresponding hanging rope.

[0012] Furthermore, it also includes a fixing buckle, through which the lifting pipe and the lifting rope are connected.

[0013] Furthermore, the fixing buckle includes a strip-shaped seat with an arc-shaped groove along its length, and wing plates on both sides of the bottom of the arc-shaped groove; and an arc-shaped pressure member with two support rods with limit nuts installed at each end; the wing plates have through holes corresponding to the support rods on the arc-shaped pressure member, and the support rods are inserted into the corresponding through holes and threadedly connected to the adjusting nuts.

[0014] Furthermore, the pearl oyster farming raft also includes a raft fixing rope, and the support frame and the suspension component are fixedly connected by the raft fixing rope.

[0015] The advancements of this invention compared to the prior art are as follows: This invention offers several advantages: it eliminates the need for cleaning cages and allows for the simultaneous cleaning of multiple cages. The rinsing process, from the inside out, prevents floating mud and attached organisms from entering the cages, thus reducing the growth of disease-causing organisms in pearl oysters. Throughout the pearl farming process, it reduces the need to cut the byssal threads of pearl oysters when changing cages, minimizing damage. Furthermore, it allows for the use of fresh water or chemical solutions (such as tea saponin) to clean the cages during pearl farming, preventing the approach or attachment of sponges, sea squirts, calcareous worms, polychaetes, and other attached organisms, thereby preventing disease. Using this invention in pearl farming production allows for the simultaneous cleaning of multiple cages, solving the problems of attached organisms and disease growth in pearl farming, improving the survival rate of pearl oysters, pearl quality, and ultimately, the economic benefits of pearl farming. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the structure of a multi-cage pearl oyster cage cleaning device according to the present invention; Figure 2 This is a schematic diagram of the structure of multiple shell cages suspended on a single suspension member in this utility model; Figure 3 This is a schematic diagram of the structure of a single shell cage suspended by a suspension component in this utility model; Figure 4 This is a schematic diagram of one structure of the fixing buckle in this utility model; Figure 5 for Figure 4 Schematic diagram of the middle support base; Figure 6 for Figure 4 Schematic diagram of the structure of the arc-shaped press-fit component; The names and serial numbers of each component in the diagram are as follows: 1-Support frame, 2-Float fixing rope, 3-Float, 4-Hanging rope, 5-Lifting rope, 6-Shell cage, 61-Support ring, 62-Net bag, 7-Rotating nozzle, 8-Hanging pipe, 9-Binding piece, 10-Water distribution pipe, 11-Water valve, 12-Main pipe, 13-Water supply pipe, 14-Water pump, 15-Water pumping pipe, 16-Second arc-shaped clamp, 17-Second bolt, 18-Suspension piece, 19-Fixing buckle, 191-Strip seat, 1911-Arc-shaped groove, 1912-Wing plate, 1913-Through hole, 192-Arc-shaped pressure piece, 193-Support rod, 1931-Threaded section, 194-Limit nut, 195-Adjusting nut, 20-Float binding rope. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions of this utility model will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments in this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0019] Example 1: like Figures 1 to 6 As shown, this disclosure discloses a device for cleaning multiple pearl oyster cages simultaneously, comprising a water supply network, a rotating nozzle 7, and a water supply power unit. Multiple hanging pipes 8 extend from the water supply network; the rotating nozzle 7 is hydraulically driven to rotate and has at least two spray holes, with each hanging pipe 8 connected to one rotating nozzle 7; the water supply power unit is connected to the water supply network and supplies pressurized cleaning water to the network. The water pressure of the cleaning water is 0.5–1.0 MPa.

[0020] During cleaning, the water pressure can be selected from 0.5, 0.6, 0.7, 0.8, 0.9, or 1.0 MPa. To facilitate knowing the water pressure in the water supply network, a pressure gauge is installed on the network. During operation, the power supply unit supplies pressurized cleaning water to the network. This water is distributed to each hanging pipe 8, and the pressurized cleaning water in each pipe 8 is sprayed outwards through rotating nozzles. The sprayed water impacts the sides of the oyster cages from the inside out, rinsing them and preventing sponges, sea squirts, calcareous worms, polychaetes, and other attached organisms from approaching or attaching to them. like Figure 1 As shown, the water supply network includes multiple branch pipes 10 and a main pipe 12. The multiple branch pipes 10 are connected to the main pipe 12, and multiple hanging pipes 8 are led out from each branch pipe 10.

[0021] To facilitate the control of water pressure in the distribution pipe, a water valve 11 is installed. The water valve 11 is installed on the end of the distribution pipe 10 near the main pipe 12.

[0022] Understandably, the opening degree of water valve 11 can correspondingly regulate the water pressure in the distribution pipe. For example, when the water valve is not open, no cleaning water flows through the distribution pipe. As the opening degree of the controller gradually increases, the water pressure in the distribution pipe gradually increases as well. When the water valve is fully open, the water pressure in the distribution pipe can be 0.5–1.0 MPa. The water pressure sprayed from the rotating nozzle can also be 0.5–1.0 MPa.

[0023] A structure of a water supply power unit is given, which includes a water pump 14, a water delivery pipe 13 and a water pumping pipe 15. One end of the water delivery pipe 13 is connected to the main pipe 12 and the other end is connected to the outlet end of the water pump 14. The water pumping pipe 15 is connected to the inlet end of the water pump 14.

[0024] During operation, the water pump 14 draws cleaning water through the water pumping pipe 15 and then sends the cleaning water into the water delivery pipe 13. The water delivery pipe 13 sends the cleaning water into the main pipe 12, and the main pipe 12 then distributes the cleaning water to each branch pipe. The branch pipe 10 then distributes the cleaning water to each hanging pipe 8. The cleaning water in the hanging pipe 8 is sprayed out through the spray holes on the rotating nozzle 7.

[0025] It should be noted that the cleaning water source can be seawater, fresh water, or a prepared medicinal solution. To draw seawater, simply place the pump pipe 15 into the seawater. To draw fresh water or a prepared medicinal solution, place the pump pipe into a pre-prepared pool.

[0026] Understandably, during cleaning operations, pressure gauges can be installed on each branch pipe to easily monitor the water pressure within the water supply network. If, during operation, a single water pump supplies cleaning water to multiple cages but the water pressure does not reach the set pressure, the number of pumps can be increased appropriately. With multiple pumps, each pump supplies cleaning water to a corresponding number of branch pipes to ensure that the water pressure in each branch pipe reaches the set pressure.

[0027] Example 2: A pearl oyster farming raft includes the aforementioned multi-cage pearl oyster cleaning device, support frame 1, floats 3, and multiple oyster cages 6. Multiple suspension members 18 are installed between adjacent, parallel support frames 1, with the suspension members 18 spaced apart and arranged in parallel. Each oyster cage 6 is suspended from a suspension member 18 by a rope 4. Each oyster cage 6 is equipped with a hanging pipe 8 and a rotating nozzle 7, the rotating nozzle 7 being inserted into the oyster cage 6. At least one float 3 is provided at the bottom of each support frame 1. Each hanging pipe 8 has a redundant length and is loosely and tightly installed on the corresponding hanging rope 4.

[0028] Float 3 supports the support frame 1, allowing it to float on the sea surface and supporting multiple suspension components 18 that extend above the sea level. The number of floats installed at the bottom of each support frame can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, etc. An appropriate number of floats can be installed at the bottom of each support frame according to aquaculture needs.

[0029] The float 3 can be made from a sealed empty oil drum, a sealed foam box, or a foam block, etc. Understandably, the specifications of the empty oil drum, sealed foam box, or foam block can be set according to the needs of aquaculture.

[0030] like Figure 1As shown, one way to connect and fix the float 3 to the support frame 1 is as follows: the float 3 and the support frame 1 are fixedly connected by a float binding rope 20. It is understood that the appropriate length of the float binding rope can be selected according to the size of the float.

[0031] To allow for adjustment of the length of the hanging pipe inserted into the shell cage, such as Figure 1-3 As shown, the hanging pipe 8 has a redundant length between the connection point with the hanging rope and the connection point with the water distribution pipe.

[0032] Understandably, all the hanging pipes 8 have redundant lengths to facilitate adjustment of the depth to which the rotating nozzle is inserted into the pearl oyster cage. For example, when the hanging pipe is loosely connected to the hanging rope, the hanging pipe can be moved to adjust the depth to which the rotating nozzle is inserted into the pearl oyster cage. When the rotating nozzle is adjusted to the desired position, the hanging pipe is tightly connected to the hanging rope, and the hanging pipe is fixed to the hanging rope.

[0033] It should be noted that the rotating nozzle is suspended in the center of the shell cage, at least 2 cm above the pearl oysters inside. The cleaning water sprayed from the rotating nozzle is directed towards the side of the shell cage to prevent the cleaning water from washing away the pearl oysters inside.

[0034] It should also be noted that, depending on the condition of the shell cage, the length of the hanging pipe inside the shell cage can be adjusted up and down each time to change the rinsing surface of the rotating nozzle, thereby keeping the shell cage clean overall.

[0035] like Figure 1 As shown, the suspension component 18 can be a support suspension rod or a pull rope. When the suspension component is a pull rope, both ends of the pull rope are tied and fixed to the support frame and the float. When the suspension component is a support suspension rod, the support suspension rod can be made of wood or bamboo strips, with a tail diameter greater than 8 cm and annual rings of more than 4 years.

[0036] In some embodiments of this disclosure, a connection structure for the lifting pipe and the lifting rope is provided. A fixing buckle 19 is added, and the lifting pipe 8 and the lifting rope 4 are connected by the fixing buckle 19.

[0037] The fixing buckle 19 secures the lifting pipe 8 to the lifting rope 4. It should be noted that the fixing buckle is located near the binding connection point between the lifting rope and the lifting rope, which helps to limit the swing amplitude of the lifting pipe.

[0038] In some embodiments of this disclosure, a structure for the fastener is provided. For example... Figure 4-6 As shown, the fixing buckle 19 includes a strip-shaped seat 191 with an arc-shaped groove 1911 along its length, and wing plates 1912 on both sides of the bottom of the arc-shaped groove 1911; and an arc-shaped pressing member 192, with two support rods 193 with limit nuts 194 installed at each end; the wing plate 1912 has through holes 1913 corresponding to the support rods 193 on the arc-shaped pressing member 192, and the support rods 193 are inserted into the corresponding through holes 1913 and threadedly connected to the adjusting nut 195.

[0039] The support rod 193 is provided with a threaded section 1931. The threaded section 1931 allows the limit nut 194, the adjusting nut 195 and the support rod 193 to be threaded.

[0040] The strip seat 191 is fitted onto the lifting rope through the arc-shaped groove 1911. The arc-shaped groove 1911 and the arc-shaped clamping member 192 cooperate with each other to clamp the lifting rope and the lifting pipe.

[0041] like Figure 4 As shown, the four support rods 193 on the arc-shaped pressure member 192 are inserted into the four through holes on the strip seat 191.

[0042] The adjusting nut 195 and the limiting nut 194 work together to accommodate different diameters of lifting ropes and pipes.

[0043] like Figure 4 , 5 As shown in Figure 6, both the strip seat 191 and the arc-shaped pressure piece have a certain length, and the arc-shaped groove extends along the length direction of the strip seat, so that the arc-shaped groove 1911 also has a certain length. When the arc-shaped pressure piece and the strip seat clamp and fix the lifting rope and the lifting pipe, the contact length between the strip seat and the lifting rope, and between the arc-shaped pressure piece and the lifting pipe is increased, which is more conducive to the stable connection between the lifting pipe and the lifting rope.

[0044] How to use the fastener: Fixing procedure: Remove the adjusting nut 195 from the support rod 193, then insert the four support rods 193 on the arc-shaped pressure piece into the corresponding through holes 1913 on the strip seat. Next, fit the adjusting nut 195 onto the threaded section 1913 and tighten the adjusting nut 195. At this time, the limiting nut 194 is in contact with the wing plate 1912. The adjusting nut 195 and the limiting nut 194 clamp the wing plate together, thereby fixing the support rod on the wing plate. This achieves the fixed installation of the arc-shaped pressure piece on the strip seat, while the arc-shaped pressure piece and the strip seat clamp and fix the lifting rope and the lifting pipe.

[0045] Loosening operation: When it is necessary to adjust the length of the hanging pipe inserted into the cage, loosen the adjusting nuts 195 on each support rod, and release the arc-shaped pressure piece 192 from squeezing the hanging pipe. At this time, the hanging pipe can be moved. It can be moved down or up according to the cleaning work needs. The rotating nozzle moves with the hanging pipe to adjust the height of the rotating nozzle. After adjusting the rotating nozzle to the required height, tighten the adjusting nut.

[0046] In some embodiments of this disclosure, a connection structure between the suspension member and the support frame is provided, which is fixedly connected by a raft fixing rope 2.

[0047] One method of securing the raft fixing rope 2 is to use a cross-shaped knot to secure the suspension component and the support frame. Understandably, the length of the raft fixing rope 2 can be selected according to the shape and specifications of the suspension component and the support frame.

[0048] This embodiment further provides an installation structure for the main pipe, which includes the addition of a second arc-shaped clamp 16 and a second bolt 17. The second arc-shaped clamp 16 is fitted onto the main pipe 12, and both ends are fixedly connected to the suspension member 18 by the second bolt 17.

[0049] like Figure 1 As shown, each suspension member 18 can be connected to the main pipe 12 via a second arc-shaped clamp 16. The second arc-shaped clamp is half-hooped onto the main pipe, and its two ends are fixedly connected to the suspension member via second bolts, thereby fixing the main pipe to the suspension member.

[0050] Understandably, in this embodiment, the preferred suspension component is a suspension rod structure. The supporting suspension rod can provide support for the main pipe.

[0051] Another installation method for the main pipe is as follows: the main pipe can be tied and fixed to the support frame 1 by the floating raft fixing rope 2. It is understood that the binding method can also be a cross knot.

[0052] like Figure 1 As shown, a connection structure between the water distribution pipe and the suspension component is given, with the addition of a binding member 9, through which the water distribution pipe 10 is bound and fixed to the suspension component 18.

[0053] Binding components can be cable ties, straps, or ropes. Cable ties, straps, and ropes can all facilitate the binding and securing of the water pipe to the hanging device. For example, cable ties can be self-locking nylon cable ties, stainless steel cable ties, etc. Straps can be made of nylon tape. Ropes can be made of nylon rope or hemp rope, etc. Of course, these are not the only options; binding components can also be made of wire with a diameter of 1.5mm to 2.5mm.

[0054] The water distribution pipe 10 of this invention can be installed using either a soft or hard water pipe, and the hanging pipe 8 can be installed using a soft water pipe. For example, the water distribution pipe 10 and the hanging pipe 8 can be TPU hoses or PUR hoses. TPU hoses have resistance to seawater stress cracking, hydrolytic stability, and antibacterial properties. PUR hoses can resist corrosion from salt, minerals, and chemicals in seawater. Hard water pipes can be PE pipes or PVC pipes, etc.

[0055] The working principle of this utility model is as follows: Immerse the water pump 15 into the seawater and start the water pump 14. The water pump 14 draws seawater through the water pump 15 and sends it into the water delivery pipe 13. The water delivery pipe 13 sends the seawater into the main pipe 12. The main pipe 12 then distributes the seawater into each branch pipe 10. The branch pipe 10 distributes the seawater into each hanging pipe 8. The seawater in the hanging pipe 8 is sprayed outward through at least two spray holes on the rotating nozzle while rotating, thus realizing the spraying of cleaning water from inside the cage to outside the cage, and also realizing the simultaneous cleaning of multiple shell cages.

[0056] During the cleaning process, if the height of the rotating nozzle is found to be too high or too low, the clamping connection of the fixing buckle can be released, allowing the hanging pipe and rope to be disconnected. The hanging pipe can then be moved to move the rotating nozzle to the required height. The fixing buckle can then be used to reconnect the hanging pipe and rope. The rotating nozzle, now at the correct height, can then rinse the shell cage surface at the corresponding height.

[0057] It should be noted that, depending on the condition of the shell cage, the length of the hanging pipe inside the shell cage can be adjusted up and down each time to change the rinsing surface of the rotating nozzle, thereby keeping the shell cage clean.

[0058] In pearl farming, there is no need to put away the shell cages. Simply put the water pipe into the seawater and start the water pump to draw seawater to directly rinse the shell cages, which cleans the shell cages and greatly reduces the amount of labor.

[0059] In pearl farming, pearl oyster seedlings with a shell length of 3mm are released. In addition to separating and changing cages as needed for growth, the cages can be cleaned using this utility model according to the condition of the cages. During farming, cages will not need to be changed due to the presence of attached organisms, reducing operational damage to the pearl oysters and improving the survival rate of the farmed pearl oysters.

[0060] In pearl farming, when the shells of the oyster seedlings are more than 3cm long, except when the cages need to be changed for inserting the nucleus, this utility model can be used to clean the cages according to their dirt condition. This eliminates the need to change the cages during farming, reduces the damage to the pearl oysters, and improves the survival rate of pearl oysters and the yield and quality of pearls.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for cleaning multiple pearl oyster cages at once, characterized in that: include Water supply network, from which multiple hanging pipes (8) are led out; A rotating nozzle (7) is hydraulically driven to rotate and has at least two spray holes. Each hose (8) is connected to a rotating nozzle (7); and A water supply power unit is connected to the water supply network and supplies pressurized cleaning water to the water supply network.

2. The single-stage multi-cage pearl oyster cage cleaning device according to claim 1, characterized in that: The water supply network includes multiple branch pipes (10) and a main pipe (12). The multiple branch pipes (10) are connected to the main pipe (12), and multiple hanging pipes (8) are led out from each branch pipe (10).

3. The single-stage multi-cage pearl oyster cage cleaning device according to claim 2, characterized in that: It also includes water valves (11), with a water valve (11) installed on one end of each branch pipe (10) near the main pipe (12).

4. The single-stage multi-cage pearl oyster cage cleaning device according to claim 1, characterized in that: The water pressure of the cleaning water is 0.5 to 1.0 MPa.

5. The single-stage multi-cage pearl oyster cage cleaning device according to claim 1, characterized in that: The water supply power components include a water pump (14), a water delivery pipe (13) and a water pumping pipe (15). One end of the water delivery pipe (13) is connected to the main pipe (12), and the other end is connected to the outlet end of the water pump (14). The water pumping pipe (15) is connected to the inlet end of the water pump (14).

6. A floating raft for pearl oyster farming, characterized in that: The device includes a single-stage cleaning apparatus for multiple pearl oyster cages as described in any one of claims 1 to 5.

7. The pearl oyster farming raft according to claim 6, characterized in that: include Support frame (1), multiple suspension members (18) are installed between adjacent parallel support frames (1), and the multiple suspension members (18) are arranged in parallel at intervals; Multiple shell cages (6), each shell cage (6) is suspended from a suspension member (18) by a rope (4), each shell cage (6) is equipped with a hanging pipe (8) and a rotating nozzle (7), the rotating nozzle (7) being inserted into the shell cage (6); and Float (3), at least one float (3) is provided at the bottom of each support frame (1); Each of the hanging pipes (8) has a redundant length and is loosely and tightly installed on the corresponding hanging rope (4).

8. The pearl oyster farming raft according to claim 7, characterized in that: It also includes a fixing buckle (19), through which the lifting pipe (8) and the lifting rope (4) are connected.

9. The pearl oyster farming raft according to claim 8, characterized in that: The fixing buckle (19) includes A strip-shaped base (191) has an arc-shaped groove (1911) along its length, and wing plates (1912) are provided on both sides of the bottom of the arc-shaped groove (1911); and The arc-shaped pressure piece (192) has two support rods (193) with limit nuts (194) installed at both ends; the wing plate (1912) has a through hole (1913) corresponding to the support rod (193) on the arc-shaped pressure piece (192), and the support rod (193) is inserted into the corresponding through hole (1913) and threadedly connected to the adjusting nut (195).

10. The pearl oyster farming raft according to claim 7, characterized in that: It also includes a raft fixing rope (2), and the support frame (1) and the suspension member (18) are fixedly connected by the raft fixing rope (2).

Images