Oyster culture cage with antibacterial and insecticidal functions and preparation method thereof

Abstract

The application discloses a kind of oyster culture cage with antibacterial and insecticidal function and preparation method in the field of aquaculture equipment, and the oyster culture cage includes cage body, and the center of cage body is rotationally matched with center shaft, and the outer periphery of center shaft is arranged with several culture blocks for oyster adsorption;Center shaft outer wall is fixedly connected with push plate and several rotary leaves, and several through holes are opened on rotary leaves, and the through holes are all communicated with pipelines;The bottom of center shaft is provided with a conversion mechanism for converting the intermittent rotation of the center shaft into continuous rotation, and the bottom of the shaft is provided with a fan blade for generating upward water flow;During the oyster culture process, the push plate is driven to rotate by the sea waves on the sea surface, and then the microbial preparation or air is injected into the cage body through the pipeline, the push plate stirs the seawater through the rotary leaves and the upward water flow generated by the fan blade, so that the microbial preparation governs the harmful bacteria and parasites easily attached to the surface of oyster, and reduces the infection and disease probability of oyster.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture equipment, specifically an oyster farming cage with antibacterial and insecticidal functions and its preparation method. Background Technology

[0002] Oysters, also known as sea oysters or oysters, are filter-feeding bivalve mollusks and the world's most farmed shellfish. As a high-quality farmed shellfish, oysters are characterized by low input costs and high returns; therefore, the oyster farming area in my country has been continuously expanding in recent years.

[0003] While oyster farming is expanding, it also faces numerous challenges, including overcapacity farming, aging marine environments, and severe diseases. Furthermore, the increasing prevalence of diseases caused by microorganisms and parasites has become a major obstacle affecting oyster production and hindering the development of the oyster farming industry. Therefore, there is a need for oyster farming cages that can control harmful bacteria and parasites during the oyster farming process. Summary of the Invention

[0004] The purpose of this invention is to provide an oyster farming cage with antibacterial and insecticidal functions and its preparation method, which facilitates the control of harmful bacteria and parasites during oyster farming and reduces the chance of oysters becoming infected with diseases.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An oyster farming cage with antibacterial and insecticidal functions includes a cage body, a central shaft that rotates around the center of the cage body, and several farming blocks arranged around the outer periphery of the central shaft for oyster adsorption.

[0007] A push plate and several rotating blades are fixedly connected to the outer wall of the central shaft. The push plate is located on the top of the cage and the rotating blades are located inside the cage. Several through holes are opened on the rotating blades, and each through hole is connected to a pipe. The end of the pipe away from the through hole passes through the top of the central shaft.

[0008] The bottom of the central shaft is provided with a conversion mechanism, which includes a housing with a cavity inside. The cavity contains a turntable and a rotating block. A one-way pushing mechanism is provided between the rotating block and the central shaft. The one-way pushing mechanism includes several protrusions and several pawls. The protrusions are fixedly connected to the inner wall of the rotating block. The pawls are rotatably engaged with the central shaft. A blocking groove for limiting the rotation of the pawls is also fixedly connected to the central shaft.

[0009] When the central shaft rotates clockwise, the pawl and the protrusion slide into each other; when the central shaft rotates counterclockwise, the pawl and the protrusion abut against each other.

[0010] Several first pillars are fixedly connected to the rotating block, and several corresponding second pillars are provided on both sides of the first pillars. The first pillars are fixedly connected to the side of the turntable near the rotating block, and a tension spring is connected between the first pillars and the second pillars.

[0011] A rotating shaft is fixedly connected to the center of the turntable. The rotating shaft passes through the side of the housing away from the central axis. The rotating shaft is connected to the housing with a rotating fitting. Fan blades for generating rising water flow are fixedly connected to the rotating shaft.

[0012] The above solution achieved the following beneficial effects:

[0013] The pusher plate is partially exposed on the sea surface. The seawater pushes the pusher plate to rotate around the central axis. The rotating blades on the central axis drive the seawater to wash the surface of the oysters, making it difficult for bacteria to adhere to the surface of the oysters and improving the environmental conditions during the oyster growth process.

[0014] As needed, microbial agents or air can be injected through pipes, and the air and microbial agents at the top can be discharged through the holes on the rotating blades. This increases the contact area between the oysters and the microbial agents or increases the oxygen content in the water. The microbial agents inhibit the growth of harmful microorganisms by competing with them for nutrients.

[0015] Simultaneously, the intermittent rotation of the central shaft is converted into continuous rotation of the fan blades through a conversion mechanism, facilitating the formation of an upward water flow. This further increases the contact area between the oysters and seawater, microbial agents, or air, increasing the oxygen content in the water and making it difficult for bacteria to adhere to the oyster surface. During oyster farming, this facilitates the control of harmful bacteria and parasites, reducing the likelihood of oysters becoming infected and diseased.

[0016] Furthermore, several pull ropes are arranged around the outer circumference of the central axis, the breeding block is located on the pull rope, one end of the pull rope is fixedly connected to a locking block, and the other end of the pull rope is detachably connected to a hook; and several extension slots are opened on the top of the cage, the locking block is located on the extension slot, and the pull rope slides in conjunction with the extension slot, a second bolt is threaded on the locking block, and the locking block is fixedly connected to the cage through the second bolt; the hook is fixedly connected to the bottom of the cage.

[0017] Beneficial effects: The oysters can be easily removed and installed from the culture block by sliding the rope in the extension trough. The locking blocks and hooks prevent the culture block on the rope from shaking at large angles.

[0018] Furthermore, the diameter of the through holes along the rotating blade gradually increases from top to bottom.

[0019] Beneficial effects: The gradually increasing diameter of the through holes reduces the amount of microbial agents or air discharged from the top of the rotating blades, while increasing the amount of microbial agents or air discharged from the bottom of the rotating blades. The upward water flow generated by the fan blades increases the contact area between the microbial agents or air and the oysters on the culture block.

[0020] Furthermore, a spring is fitted on the central shaft, with one end of the spring fixedly connected to the push plate and the other end of the spring fixedly connected to the cage.

[0021] Beneficial effect: After the central shaft rotates, the compressed spring is easy for the push plate to reset.

[0022] Furthermore, a retaining ring is rotatably fitted on the central shaft. The retaining ring is rotatably fitted with the cage body, and a first bolt is threaded onto the retaining ring. The retaining ring is fixedly connected to the cage body through the first bolt.

[0023] Beneficial effects: By adjusting the position of the retaining ring, the tension of the spring is limited, thereby limiting the rotation angle of the push plate. This makes it easier to adjust the rotation amplitude of the push plate under the interference of external water flow according to different stages of oyster farming.

[0024] Furthermore, a one-way valve is connected inside the through hole, which allows liquid or gas to flow from the pipe to the outside of the through hole.

[0025] Beneficial effects: The one-way valve prevents external water and impurities from entering the pipe, thus preventing blockages.

[0026] Furthermore, several filter screens are detachably connected to the outer edge of the cage.

[0027] Beneficial effects: The filter screen can filter out floating debris from the outside seawater and prevent it from entering the cage, ensuring the cleanliness of the cage and avoiding the formation of an environment for bacterial growth due to excessive floating debris.

[0028] Furthermore, a method for preparing an oyster farming cage with antibacterial and insecticidal functions includes the following steps: Step 1: Select PE rubber granules as raw materials, use a plastic extruder to melt and extrude the PE rubber granules to obtain filaments, and then braid the filaments into ropes to construct a filter screen and a pull rope;

[0029] Step 2: Select seawater corrosion-resistant steel as raw material. After drying, the steel is melted and die-cast to obtain cages and breeding blocks. Then, the ropes are assembled with the breeding blocks.

[0030] Step 3: Install the filter screen on the outer edge of the cage, apply a bactericidal aquaculture paint to the surface of the assembled cage, and let it stand until the paint is completely dry.

[0031] Beneficial effects: The filter screen and pull rope made of PE rubber granules are wear-resistant, extending their service life. The cage body made of seawater corrosion-resistant steel is low-cost and corrosion-resistant, making it suitable for long-term immersion in seawater. At the same time, by spraying aquaculture paint on the surface, bacteria and algae in the seawater are reduced from adhering to the surface of the device, keeping the environment clean during the oyster growth process, thereby reducing the chance of oysters getting infected and diseased. Attached Figure Description

[0032] Figure 1This is a front view of an oyster farming cage with antibacterial and insecticidal functions according to an embodiment of the present invention.

[0033] Figure 2 This is a top view of an oyster farming cage with antibacterial and insecticidal functions according to an embodiment of the present invention.

[0034] Figure 3 for Figure 1 A three-dimensional schematic diagram of the retaining ring.

[0035] Figure 4 for Figure 1 Side view of the conversion mechanism.

[0036] Figure 5 for Figure 4 A sectional view along the AA direction.

[0037] Figure 6 for Figure 4 A schematic diagram of the connection between the central axis and the rotating block. Detailed Implementation

[0038] The following detailed description illustrates the specific implementation method:

[0039] The reference numerals in the accompanying drawings include: cage body 1, filter screen 11, central shaft 2, push plate 21, rotating blade 23, through hole 24, rotating block 25, first support column 251, protrusion 252, pawl 26, blocking groove 27, retaining ring 3, protrusion 31, first bolt 32, torsion spring 4, pipe 5, conversion mechanism 6, cavity 60, fan blade 61, turntable 62, rotating shaft 621, second support column 622, tension spring 623, breeding block 7, pull rope 71, locking block 72, hook 73, second bolt 74.

[0040] Example 1

[0041] The basic implementation examples are as follows: Figures 1 to 6 As shown: An oyster farming cage with antibacterial and insecticidal functions includes a hollow cylindrical cage body 1, a central shaft 2 rotatably fitted at the center of the cage body 1, and several farming blocks 7 for oyster adsorption arranged around the outer periphery of the central shaft 2; several filter screens 11 are detachably connected to the outer edge of the cage body 1.

[0042] A spring is fitted on the central shaft 2. One end of the spring is engaged with the push plate 21, and the other end of the spring is engaged with the cage body 1. A retaining ring 3 is also rotatably fitted on the central shaft 2. The retaining ring 3 is rotatably fitted with the cage body 1. A first bolt 32 is threaded onto the retaining ring 3. The retaining ring 3 is fixedly connected to the cage body 1 through the first bolt 32.

[0043] A push plate 21 and several rotating blades 23 are welded to the outer wall of the central shaft 2. The push plate 21 is located on the top of the cage 1, and the rotating blades 23 are located inside the cage 1. Several through holes 24 are opened on the rotating blades 23. Each through hole 24 is connected to a pipe 5. The end of the pipe 5 away from the through hole 24 passes through the top of the central shaft 2. A one-way valve is connected inside the through hole 24. The one-way valve can only allow liquid or gas to flow from the pipe 5 to the outside of the through hole 24.

[0044] The bottom of the central shaft 2 is provided with a conversion mechanism 6. The conversion mechanism 6 includes a housing, and a cavity 60 is opened inside the housing. A turntable 62 and a rotating block 25 are provided inside the cavity 60. A one-way pushing mechanism is provided between the rotating block 25 and the central shaft 2. The one-way pushing mechanism includes several protrusions 252 and several pawls 26. The protrusions 252 are integrally formed with the inner wall of the rotating block 25. The pawls 26 are rotatably engaged with the central shaft 2. A blocking groove 27 for limiting the rotation of the pawls 26 is also welded on the central shaft 2.

[0045] When the central shaft 2 rotates clockwise, the pawl 26 slides into the protrusion 252; when the central shaft 2 rotates counterclockwise, the pawl 26 abuts against the protrusion 252.

[0046] A number of first pillars 251 are welded on the rotating block 25. A number of corresponding second pillars 622 are provided on both sides of the first pillars 251. The first pillars 251 are welded to the side of the turntable 62 near the rotating block 25. A tension spring 623 is connected between the first pillars 251 and the second pillars 622.

[0047] The turntable 62 has an integrally formed rotating shaft 621 at its center. The rotating shaft 621 passes through the side of the housing away from the central shaft 2. The rotating shaft 621 is connected to the rotating housing and has a rotating fitting. A fan blade 61 for generating an upward water flow is welded onto the rotating shaft 621.

[0048] The specific implementation process is as follows:

[0049] The cage 1 is manually fixed to the sea surface, with the pusher plate 21 partially exposed. Adhesion is a key step in the invasion of pathogens into the oyster host, causing infection and disease. For example, among oyster pathogenic bacteria, Vibrio tasmania is one that causes disease through adhesion. Seawater propels the pusher plate 21 to rotate around the central axis 2. The rotating blades 23 on the central axis 2 carry seawater to wash the surface of the oyster, making it difficult for bacteria or pests to adhere to the oyster surface and improving the environmental conditions during oyster growth.

[0050] By adjusting the position of the retaining ring 3 to limit the tension of the spring, the rotation angle of the push plate 21 is restricted. This allows for adjustment of the rotation amplitude of the push plate 21 under the influence of external water flow according to different stages of oyster farming. For example, although newly farmed oyster larvae can be fixed externally, they may be washed away by large waves when they mature and are ready for harvest. Meanwhile, adult oysters that have been farmed for a period of time have a certain degree of adhesion and tend to accumulate due to the long farming period, requiring strong waves to impact and wash them.

[0051] According to the antibacterial and insecticidal requirements, microbial agents or air are injected through pipe 5. The microbial agents include Pseudomonas aeruginosa and compound Bacillus. Pseudomonas aeruginosa can effectively inhibit the growth of pathogenic bacteria in oysters, and compound Bacillus can improve the immunity of Pacific oysters and enhance their resistance to Vibrio.

[0052] Air and microbial agents at the top are manually discharged through pipe 5 and through holes 24 on rotating blade 23, increasing the contact area between oysters and microbial agents. Due to the use of a one-way valve, external water flow and impurities are not easily allowed to enter pipe 5. Therefore, during the rotation of rotating blade 23, air in pipe 5 will be discharged, increasing the oxygen content in the water. Microbial agents inhibit the growth of harmful microorganisms by competing with them for nutrients.

[0053] Meanwhile, when the central shaft 2 rotates clockwise, the pawl 26 slides into the protrusion 252, and when the central shaft 2 rotates counterclockwise, the pawl 26 abuts against the protrusion 252. Therefore, the central shaft 2 will only drive the rotating block 25 to rotate when it rotates counterclockwise. When the central shaft 2 is rotated clockwise by the waves, the rotating block 25 does not rotate, ensuring that the fan blade 61 rotates in only one direction. When the central shaft 2 is no longer driven by the waves, the spring releases its elastic force to drive the central shaft 2 to rotate counterclockwise, thereby driving the rotating block 25 to rotate, ensuring the continuous rotation of the fan blade 61.

[0054] When the rotating block 25 rotates, it drives the turntable 62 to rotate via the tension spring 623. Due to the elastic potential energy of the tension spring 623 and the intermittent rotation of the central shaft 2 caused by the waves, when the rotating block 25 rotates and drives the turntable 62 to rotate, the tension spring 623 will be stretched, which slows down the clockwise rotation angle of the turntable 62. When the rotating block 25 stops rotating, the stretched tension spring 623 releases its elastic force to pull the turntable 62 to continue rotating, thereby making the turntable 62 rotate continuously.

[0055] The intermittent rotation of the central shaft 2 is converted into continuous rotation of the fan blades 61 by the conversion mechanism 6, which facilitates the formation of an upward water flow. This further increases the contact area between the oysters and seawater, microbial agents, or air, increasing the oxygen content in the water and making it difficult for bacteria to adhere to the oyster surface. During oyster farming, this facilitates the control of harmful bacteria and parasites, reducing the chance of oysters becoming infected and diseased.

[0056] Example 2

[0057] The difference from the above embodiment is that a number of pull ropes 71 are arranged around the outer periphery of the central shaft 2, the breeding block 7 is located on the pull ropes 71, a locking block 72 is welded to one end of the pull rope 71, and a hook 73 is detachably connected to the other end of the pull rope 71; and a number of extension slots are opened on the top of the cage body 1, the locking block 72 is located on the extension slot, and the pull rope 71 slides with the extension slot, a second bolt 74 is threaded on the locking block 72, and the locking block 72 is fixedly connected to the cage body 1 by the second bolt 74; the hook 73 is welded to the bottom of the cage body 1.

[0058] The specific implementation process is as follows: When installing the culture block 7, the manual hand-held clamp 72 drives the pull rope 71 to slide in the extension groove. When it moves to the appropriate position, the second bolt 74 is used to fix the clamp 72 to the top of the cage body 1. Then, the pull rope 71 is hooked onto the hook 73 to fix both ends of the pull rope 71 to the cage body 1, so that the culture block 7 on the pull rope 71 is not prone to large-angle shaking, thus ensuring the stability of the oysters on the culture block 7.

[0059] When disassembling the culture block 7, make sure the pull rope 71 is no longer hooked on the hook 73, then remove the second bolt 74, and use the locking block 72 to pull the pull rope 71, so that all the culture blocks 7 and their oysters on the pull rope 71 can be recycled.

[0060] Example 3

[0061] The difference from the above embodiment is that the diameter of the through holes 24 of the rotating blade 23 gradually increases from top to bottom.

[0062] The specific implementation process is as follows: The through holes 24 with gradually increasing diameter reduce the amount of microbial agents or air discharged from the top of the rotating blade 23, and increase the amount of microbial agents or air discharged from the bottom of the rotating blade 23. The rising water flow generated by the fan blade 61 increases the contact area between the microbial agents or air and the oysters on the culture block 7, which facilitates the competitive reproduction of beneficial bacteria on the surface of the oysters and increases the oxygen content in the seawater.

[0063] Example 4

[0064] The difference from the above embodiments is that a method for preparing an oyster farming cage with antibacterial and insecticidal functions includes the following steps: Step 1: Select PE rubber granules as raw materials, use a plastic extruder to melt and extrude the PE rubber granules to obtain filaments, and then braid the filaments into ropes to construct a filter screen 11 and a pull rope 71; the filter screen 11 and pull rope 71 made of PE rubber granules have wear resistance, which extends the service life of the filter screen 11 and pull rope 71.

[0065] Step 2: Select seawater corrosion-resistant steel as raw material (the steel is 10CrMoAl). After drying, the steel is melted and die-cast to obtain cage 1 and aquaculture block 7. Then, the pull rope 71 is assembled with aquaculture block 7. Cage 1 made of seawater corrosion-resistant steel has the characteristics of low cost and corrosion resistance, and is easy to use for long-term immersion in seawater.

[0066] Step 3: Apply a bactericidal aquaculture paint (the aquaculture paint is H5 type shellfish aquaculture paint from the brand Haixia Paint) to the surface of the assembled cage 1, let it stand until the paint is completely dry, and then install the filter screen 11 on the outer edge of the cage 1; by spraying the aquaculture paint on the surface, the bacteria and algae in the seawater are reduced to adhere to the surface of the device, keeping the environment clean during the oyster growth process, thereby reducing the chance of oyster infection and disease.

[0067] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific structures and / or characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An oyster farming cage with antibacterial and insecticidal functions, characterized in that: It includes a cage, with a central shaft rotating at the center of the cage, and several culture blocks arranged around the outer periphery of the central shaft for oyster adsorption. A push plate and several rotating blades are fixedly connected to the outer wall of the central shaft. The push plate is located on the top of the cage and the rotating blades are located inside the cage. Several through holes are opened on the rotating blades, and each through hole is connected to a pipe. The end of the pipe away from the through hole passes through the top of the central shaft. The pipes are used to inject microbial agents or air as needed for antibacterial and insecticidal purposes; secondly, the air and microbial agents at the top are manually discharged through the pipes via the holes on the rotating blades. The bottom of the central shaft is provided with a conversion mechanism, which includes a housing with a cavity inside. The cavity contains a turntable and a rotating block. A one-way pushing mechanism is provided between the rotating block and the central shaft. The one-way pushing mechanism includes several protrusions and several pawls. The protrusions are fixedly connected to the inner wall of the rotating block. The pawls are rotatably engaged with the central shaft. A blocking groove for limiting the rotation of the pawls is also fixedly connected to the central shaft. When the central shaft rotates clockwise, the pawl and the protrusion slide into each other; when the central shaft rotates counterclockwise, the pawl and the protrusion abut against each other. Several first pillars are fixedly connected to the rotating block, and several corresponding second pillars are provided on both sides of the first pillars. The first pillars are fixedly connected to the side of the turntable near the rotating block, and a tension spring is connected between the first pillars and the second pillars. A rotating shaft is fixedly connected to the center of the turntable. The rotating shaft passes through the side of the housing away from the central axis. The rotating shaft is connected to the housing with a rotating fitting. Fan blades for generating rising water flow are fixedly connected to the rotating shaft.

2. The oyster farming cage with antibacterial and insecticidal functions according to claim 1, characterized in that: Several pull ropes are arranged around the outer circumference of the central axis. The breeding block is located on the pull rope. One end of the pull rope is fixedly connected to a locking block, and the other end of the pull rope is detachably connected to a hook. Several extension slots are opened on the top of the cage. The locking block is located on the extension slot, and the pull rope slides into the extension slot. A second bolt is threaded on the locking block, and the locking block is fixedly connected to the cage through the second bolt. The hook is fixedly connected to the bottom of the cage.

3. The oyster farming cage with antibacterial and insecticidal functions according to claim 1, characterized in that: The diameter of the through holes along the rotating blade gradually increases from top to bottom.

4. The oyster farming cage with antibacterial and insecticidal functions according to claim 1, characterized in that: A spring is fitted on the central shaft. One end of the spring is fixedly connected to the push plate, and the other end of the spring is fixedly connected to the cage.

5. The oyster farming cage with antibacterial and insecticidal functions according to claim 4, characterized in that: A retaining ring is also rotatably fitted on the central shaft. The retaining ring is rotatably fitted with the cage body, and a first bolt is threaded onto the retaining ring. The retaining ring is fixedly connected to the cage body through the first bolt.

6. The oyster farming cage with antibacterial and insecticidal functions according to claim 1, characterized in that: A one-way valve is connected inside the through hole, which allows liquid or gas to flow from the pipe to the outside of the through hole.

7. The oyster farming cage with antibacterial and insecticidal functions according to claim 1, characterized in that: Several filter screens are detachably connected to the outer edge of the cage.

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