A damping vibration reduction system of a lifting net cage for mariculture

Abstract

The application discloses a damping vibration reduction system of a lifting net cage for mariculture and belongs to the technical field of deep-sea mariculture equipment. The damping vibration reduction system comprises a lifting net cage and a damping vibration reduction assembly, the lifting net cage comprises a net cage body capable of lifting and moving, the damping vibration reduction assembly comprises a damping vibration reduction unit and a cleaning unit, the damping vibration reduction unit comprises a heavy ball, a connecting piece and a horizontally arranged damping module, the heavy ball is hung on the net cage body through a cable, the fixed end of the damping module is fixedly connected with the bottom of the net cage body, the two ends of the connecting piece are respectively connected with the movable end of the damping module and the side of the heavy ball, and the cleaning unit comprises a push piece connected with the movable end of the damping module. The damping module can absorb vibration energy and drive the push piece to reciprocate relative to the bottom of the net cage body, so that the sediments attached to the net cage body are knocked off.

Description

Technical Field

[0001] This invention relates to the field of deep-sea aquaculture equipment technology, and in particular to a damping and vibration reduction system for a marine aquaculture lifting net cage. Background Technology

[0002] In recent years, deep-sea aquaculture has made a significant contribution to my country's fisheries industry. As core equipment for deep-sea aquaculture, aquaculture cages play a crucial role in expanding aquaculture areas, reducing environmental pressure along coastlines, improving the quality of farmed fish, and increasing aquaculture efficiency. With the rapid development of marine aquaculture, aquaculture cages are evolving towards deeper waters and larger scale. Deep-sea cages, as large-scale aquaculture facilities set in open coastal waters at depths of 15 meters or more, have significant advantages in resisting wind, waves, and currents. Depending on their operating methods, deep-sea cages can be divided into three types: floating, lift-and-sink, and submersible. Among them, lift-and-sink cages, due to their unique structural design, can sink to a depth of 8-10 meters in harsh sea conditions, effectively resisting the impact of waves exceeding 10 meters, making them particularly suitable for open sea areas at depths of 20 meters or more.

[0003] However, existing lifting net cages still have many technical shortcomings in practical use. First, the net cage itself is easily subjected to wave surges in the marine environment, resulting in continuous swaying and vibration. This unstable movement not only affects the normal growth of farmed fish but may also cause fatigue damage to the net cage structure. Second, fish excrement and feed residue easily accumulate at the bottom of the net cage. If these deposits are not drained in time, they will lead to water quality deterioration and affect the aquaculture environment. Summary of the Invention

[0004] In view of this, it is necessary to provide a damping and vibration reduction system for marine aquaculture lifting cages to solve the problems of excessive swaying of existing cages under external forces and the accumulation of sediment at the bottom of the cages.

[0005] This invention provides a damping and vibration reduction system for a marine aquaculture lifting cage, comprising: A lifting mesh cage, wherein the lifting mesh cage includes a mesh cage body that can be lifted and moved; A damping vibration reduction assembly includes a damping vibration reduction unit and a cleaning unit. The damping vibration reduction unit includes a weighted ball, a connector, and a horizontally arranged vibration reduction module. The weighted ball is suspended from the net cage body by a cable to reduce the amplitude of the net cage body. The fixed end of the vibration reduction module is fixedly connected to the bottom of the net cage body. The two ends of the connector are respectively connected to the movable end of the vibration reduction module and the side of the weighted ball to limit the swing limit of the weighted ball. The cleaning unit includes a lever connected to the movable end of the vibration reduction module. The vibration reduction module can absorb the vibration energy while driving the lever to reciprocate relative to the bottom of the net cage body, thereby knocking off the deposits attached to the net cage body.

[0006] Furthermore, the vibration damping module includes a movable sliding member, one end of the paddle is fixedly connected to the sliding member, and the other end of the paddle abuts against the cage body. The sliding member can drive the paddle to reciprocate to strike the bottom of the cage body.

[0007] Furthermore, the vibration damping module also includes a horizontally arranged trough and an elastic element. The trough is fixedly connected to the cage body, and the sliding element is slidably engaged in the trough. Both ends of the sliding element are connected to the ends of the trough through the elastic element, and one end of the connecting element is hinged to the sliding element.

[0008] Furthermore, the lever includes a support body fixedly connected to the sliding member and lever teeth. One end of the lever teeth is fixedly connected to the support body, and the other end of the lever teeth abuts against the bottom of the cage body. A plurality of lever teeth are arranged at equal intervals along the support body.

[0009] Furthermore, multiple vibration damping modules are arranged at equal intervals around the weighted ball, and each vibration damping module is connected to the weighted ball through the connector.

[0010] Furthermore, it also includes a bottom-contact buffer protection component, which includes two James couplers, an unlocking unit, and a vertically arranged buffer unit. One end of the buffer unit is fixedly connected to the seabed, and the other end of the buffer unit is connected to one of the James couplers. The bottom of the cage body is connected to the other James coupler, and the two James couplers can be docked and locked. The unlocking unit is provided on the James coupler for unlocking.

[0011] Furthermore, the buffer unit is an elastic buffer.

[0012] Furthermore, the unlocking unit includes a linear drive component and a locking pin. The locking pin is inserted into the James coupler. The drive end of the linear drive component is fixedly connected to the locking pin. The linear drive component can change the insertion depth of the locking pin to lock or unlock the James coupler.

[0013] Furthermore, multiple bottom-contact buffer protection components are arranged in an array relative to the cage body to provide uniform action on the cage body.

[0014] Furthermore, the lifting cage also includes pile legs and a gear transmission unit disposed between the pile legs and the cage body, the gear transmission unit being capable of driving the cage body to move up and down relative to the pile legs.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention discloses a damping and vibration reduction system for a marine aquaculture lifting cage. The system includes a damping and vibration reduction assembly comprising a damping and vibration reduction unit and a cleaning unit. The damping and vibration reduction unit includes a weighted ball, a connector, and a horizontally positioned vibration reduction module. The weighted ball is suspended from the cage body by a cable. Under the influence of gravity, the weighted ball remains vertically downward, tautly pulling the cage body. The inertia of the weighted ball reduces the swaying amplitude of the cage body under wave action, preventing violent shaking. The fixed end of the vibration reduction module is fixedly connected to the bottom of the cage body. The two ends of the connector are respectively connected to the movable end of the vibration reduction module and the side of the weighted ball. The connector and the vibration reduction module work together to limit the swaying amplitude of the weighted ball and convert inertial potential energy into mechanical energy of the vibration reduction module, which is then slowly released. The cleaning unit includes a lever connected to the movable end of the vibration reduction module. The mechanical vibration of the vibration reduction module drives the lever to tap and vibrate relative to the bottom of the cage body, promoting the discharge of sediment from the bottom of the cage. This system simultaneously suppresses cage swaying and achieves bottom self-cleaning, avoiding reliance on external power. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the damping vibration reduction component structure in this invention. Figure 1 ; Figure 3 This is a schematic diagram of the damping vibration reduction component structure in this invention. Figure 2 ; Figure 4 This is a schematic diagram of the damping and vibration reduction unit and the cleaning unit in this invention; Figure 5This is a schematic diagram of the cleaning unit in this invention; Figure 6 This is a schematic diagram of the vibration reduction module in this invention; Figure 7 This is a schematic diagram of the bottom-contact buffer protection component in this invention. Figure 1 ; Figure 8 This is a schematic diagram of the bottom-contact buffer protection component in this invention. Figure 2 .

[0017] In the diagram, 100 is the lifting cage; 110 is the cage body; 120 is the pile leg; and 130 is the gear transmission unit. 200. Damping vibration reduction assembly; 210. Damping vibration reduction unit; 211. Weight ball; 212. Connector; 213. Vibration reduction module; 213a. Sliding component; 213b. Groove; 213c. Elastic component; 220. Cleaning unit; 221. Paddle; 221a. Support body; 221b. Paddle tooth; 300. Bottom-out buffer protection assembly; 310. James coupler; 320. Unlocking unit; 321. Linear drive component; 330. Buffer unit. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0019] This embodiment describes a damping and vibration reduction system for a marine aquaculture lifting cage, which relates to the field of deep-sea aquaculture equipment technology. It uses the inertia of the suspended weight to offset part of the vibration energy and converts part of the vibration energy into mechanical motion for cleaning sediments. The vibration reduction structure and cleaning function are integrated into the design, and the same motion mechanism is used to achieve dual functions.

[0020] Please see Figures 1 to 8 This embodiment discloses a damping and vibration reduction system for a marine aquaculture lifting cage, comprising a lifting cage 100 and a damping and vibration reduction assembly 200. The lifting cage 100 can rise and fall relative to the sea surface, effectively protecting the cage during severe weather. The damping and vibration reduction assembly 200 can reduce the amplitude of the cage's vibration by utilizing the inertia of the weight, and can also clean sediment at the bottom of the cage.

[0021] The lifting cage 100 includes a vertically movable cage body 110, in which the fish to be cultured are confined. The cage body 110 can be adjusted to be submerged in seawater as needed.

[0022] The damping and vibration reduction assembly 200 includes a damping and vibration reduction unit 210 and a cleaning unit 220. The damping and vibration reduction unit 210 includes a weight ball 211, a connector 212, and a horizontally arranged vibration reduction module 213. The weight ball 211 is suspended from the net cage body 110 by a cable. Under the action of gravity, the weight ball 211 always hangs vertically downward and pulls the net cage body 110 taut. The inertia of the weight ball 211 can reduce the swing amplitude of the net cage body 110 under the action of waves and prevent the net cage body 110 from shaking violently. The fixed end of the vibration reduction module 213 is fixedly connected to the bottom of the net cage body 110. The two ends of the connector 212 are respectively connected to the movable end of the vibration reduction module 213 and the side of the weight ball 211. The connector 212 and the vibration reduction module 213 cooperate to limit the swing amplitude of the weight ball 211 and convert the inertial potential energy into the mechanical energy of the vibration reduction module 213 and release it slowly.

[0023] The cleaning unit 220 includes a paddle 221 connected to the movable end of the vibration damping module 213. The mechanical vibration of the vibration damping module 213 can drive the paddle 221 to knock and vibrate relative to the bottom of the net cage body 110, promoting the discharge of sediment from the bottom of the net cage. This achieves bottom self-cleaning while suppressing net cage swaying, avoiding reliance on external power.

[0024] The cleaning unit 220 includes a lever 221 connected to the movable end of the vibration damping module 213. When the net cage body 110 oscillates under the action of waves, the weight ball 211 oscillates relative to the net cage body 110 due to inertia, and drives the vibration damping module to reciprocate along a predetermined trajectory through the connector 212. While participating in absorbing and releasing the vibration energy of the net cage body 110, the vibration damping module 213 can drive the lever 221 to reciprocate relative to the netting of the net cage body 110, so that the lever 221 generates periodic scraping, knocking and elastic vibration on the netting.

[0025] The reciprocating action of the paddle 221 can disrupt the attachment of fish excrement, leftover food and other sediments to the net, causing the sediments to detach from the mesh and be discharged with the water flow, thereby maintaining the permeability of the net, improving the exchange efficiency of water inside and outside the net cage 110, and reducing the risk of water quality deterioration caused by long-term sediment accumulation.

[0026] Furthermore, the cleaning unit 220 directly utilizes the relative motion between the weight ball 211 and the net cage body 110 as its power source, eliminating the need for additional motors, hydraulic drive devices, or underwater power supply structures, thus reducing energy consumption and underwater maintenance difficulty. The frictional resistance, elastic deformation resistance, and water resistance generated when the lever 221 contacts the net also provide additional damping to the reciprocating motion of the vibration damping module 213, further dissipating the vibration energy of the net cage body 110. Therefore, the cleaning unit 220 is not a cleaning mechanism separately attached to the damping vibration damping component 200, but rather works synergistically with the damping vibration damping component 200 in terms of power transmission and energy dissipation, achieving self-cleaning of the net cage body 110 while simultaneously improving the overall damping vibration damping effect of the system.

[0027] During use, when the net cage body 110 is impacted by waves and shakes, the suspended weight 211 swings in the opposite direction of the net cage's movement due to inertia. This swinging energy is transferred to the vibration damping module 213 via the connector 212. The vibration damping module 213 absorbs the vibration energy in the horizontal direction and converts it into reciprocating motion at its movable end. This reciprocating motion simultaneously drives the lever 221 to continuously strike the bottom of the net cage. The lever 221 generates vibration waves during this striking process, disrupting the adhesion between the sediment and the bottom of the net cage, thus causing the sediment to be discharged with the water flow.

[0028] It should be noted that the net cage body 110 includes a frame and a barrier net. The barrier net is fitted onto the frame, maintaining communication between the seawater inside and outside the net cage body 110 while preventing the escape of farmed fish. The damping and vibration reduction assembly 200 is connected to the frame as a whole, forming a stable support structure. The lever 221 can be applied to the barrier net to clean it.

[0029] In some embodiments, please refer to Figure 3 and Figure 4 The vibration damping module 213 includes a movable sliding member 213a. One end of the paddle 221 is fixedly connected to the sliding member 213a, and the other end of the paddle 221 abuts against the net cage body 110. The sliding member 213a can drive the paddle 221 to reciprocate to strike the bottom of the net cage body 110. Through mechanical striking, the permeability of the net cage mesh is maintained, avoiding the impact of sediment clogging the mesh and affecting the water exchange efficiency, while reducing the frequency of manual cleaning operations.

[0030] In practical implementation, the sliding component 213a is a rigid structural component that can move along a straight trajectory inside the vibration damping module 213. Specifically, it can be implemented using a metal slider with guide grooves. Its connection with the lever 221 ensures the stability of power transmission. The lever 221 is a sheet-like structure with elastic deformation capability. Specifically, it can be made of rubber or polyurethane material. Its abutment against the cage body 110 can generate periodic impact force to peel off the attached material.

[0031] When the cage body 110 vibrates due to the impact of water flow, the sliding member 213a moves back and forth inside the vibration damping module 213, causing the paddle 221 fixed thereon to move synchronously. The free end of the paddle 221 continuously strikes the bottom of the cage, using the rebound characteristics of the elastic material to generate high-frequency vibration, causing biological attachments and residual bait debris deposited on the surface of the net to detach.

[0032] Traditional cage vibration damping devices only have a single buffering function and cannot solve the problem of bottom sediment. This solution links the lever 221 with the sliding component 213a to remove sediment while suppressing cage vibration, thus integrating the functions of the vibration damping structure and the cleaning device.

[0033] In some embodiments, please refer to Figure 3 and Figure 4 The vibration damping module 213 also includes a horizontally arranged trough 213b and a flexible connector 212. The trough 213b is fixedly connected to the net cage body 110. The sliding member 213a is slidably engaged in the trough 213b. Both ends of the sliding member 213a are connected to the ends of the trough 213b through elastic members 213c. One end of the connector 212 is hinged to the sliding member 213a. The connector 212 can transfer inertial potential energy to the sliding member 213a, so that mechanical kinetic energy and potential energy are mutually converted between the sliding member 213a and the elastic member 213c, slowly releasing inertial potential energy and reducing vibration amplitude. The sliding member 213a, under the action of mechanical kinetic energy, moves relative to the sliding slot, which can drive the paddle 221 to repeatedly tap the bottom of the net cage body 110, continuously cleaning the sediment at the bottom of the net cage, restoring the permeability of the bottom of the net cage body 110, and avoiding the impact on water exchange efficiency due to sediment clogging the mesh.

[0034] In practical implementation, the trough 213b is a horizontally positioned guide structure, which can be implemented using a track made of metal or composite materials. This constrains the movement trajectory of the sliding member 213a, preventing it from shifting during vibration. The elastic member 213c is a connecting component with elastic recovery capability, which can be implemented using a spring. This absorbs the kinetic energy of the sliding member 213a within the trough 213b, reducing the amplitude of vibration transmitted to the cage body 110. The connecting member 212 is hinged to the sliding member 213a, allowing the connecting member 212 to rotate within a certain angle. This connection can be implemented using a pin-bearing structure to reduce stress concentration between the connecting member 212 and the sliding member 213a.

[0035] During operation, both ends of the sliding member 213a are connected to both ends of the groove 213b via springs. When the ball 211 swings, the connecting member 212 drives the sliding member 213a to slide along the groove 213b, and the springs are compressed or stretched to dissipate vibration energy. The hinged connection allows the connecting member 212 to adjust its angle according to the swing direction of the ball 211, avoiding excessive local stress caused by rigid connection.

[0036] In some embodiments, please refer to Figure 5 The paddle 221 includes a support body 221a fixedly connected to the sliding member 213a and paddle teeth 221b. One end of the paddle teeth 221b is fixedly connected to the support body 221a, and the other end of the paddle teeth 221b abuts against the bottom of the net cage body 110. A number of paddle teeth 221b are arranged at equal intervals along the support body 221a to form an array of paddle teeth 221b. Each paddle tooth 221b can act independently on the bottom of the net cage body 110, effectively peeling off excrement and residues attached to the surface of the net, avoiding the accumulation of sediment that affects water exchange, thereby improving the aquaculture environment and reducing the frequency of manual cleaning.

[0037] In practical implementation, the support body 221a is a rigid structure used to support the pick teeth 221b, which can be implemented using a metal plate or engineering plastic plate. Its function is to convert the linear motion of the sliding member 213a into the striking action of the pick teeth 221b. The pick teeth 221b are elastic components that contact the bottom of the net cage, which can be implemented using rubber strips or spring steel sheets. Their function is to generate vibration by periodically striking the bottom of the net cage to remove sediment. Multiple pick teeth 221b are evenly distributed along the length of the support body 221a, which can be achieved using fixed-spaced mounting holes. Their function is to achieve comprehensive removal of sediment by covering different areas of the bottom of the net cage.

[0038] When the sliding component 213a reciprocates horizontally under the drive of the vibration damping module 213, it drives the support body 221a to move synchronously, causing the teeth 221b fixed on the support body 221a to repeatedly impact the bottom of the gabion. Since the teeth 221b are equidistantly distributed along the support body 221a, they can cover different locations on the bottom of the gabion during movement. For example, a tooth 221b can be placed at regular intervals, thus preventing sediment from accumulating in localized areas. When the teeth 221b contact the bottom of the gabion, the impact force generated by their elastic deformation can dislodge sediment adhering to the mesh or frame, while the continuous reciprocating motion creates a continuous cleaning effect.

[0039] In some embodiments, please refer to Figure 3Multiple vibration damping modules 213 are equidistantly arranged around the heavy sphere 211. Each vibration damping module 213 is connected to the heavy sphere 211 via a connector 212. The multiple vibration damping modules 213 can evenly disperse the kinetic energy generated by wave impact, avoiding fatigue damage to the local connection structure due to concentrated stress. At the same time, the vibration damping modules 213 can improve the stability of the aquaculture environment by dealing with the sway amplitude from different directions under complex sea conditions.

[0040] In practical implementation, the vibration damping modules 213 are arranged in a ring array centered on the weighted ball 211, with 3-6 groups evenly arranged along the circumference. The connecting piece 212 adopts a hinged rod or elastic link, one end of which is connected to the movable end of the vibration damping module 213, and the other end is connected to the side of the weighted ball 211, which is used to transfer the damping force of the vibration damping module 213 to the weighted ball 211, forming multi-directional constraints.

[0041] When the cage body 110 sways due to wave impact, the weighted ball 211 moves in the opposite direction due to inertia. At this time, multiple damping modules 213 simultaneously apply constraint forces to the weighted ball 211 through the connector 212. Since the damping modules 213 are equidistantly distributed, the constraint forces on the weighted ball 211 are symmetrical on the horizontal plane, which can counteract the sway components in different directions. For example, when the weighted ball 211 shifts in a certain direction, the damping module 213 corresponding to that direction is compressed, while the damping modules 213 at symmetrical positions are stretched, and the two together form a restoring force.

[0042] In some embodiments, please refer to Figure 1 , Figure 7 and Figure 8 A damping and vibration reduction system for a marine aquaculture lifting cage includes a bottom-contact buffer protection component 300. The bottom-contact buffer protection component 300 includes two James couplers 310, an unlocking unit 320, and a vertically arranged buffer unit 330. One end of the buffer unit 330 is fixedly connected to the seabed, and the other end is connected to one James coupler 310. The buffer unit 330 can absorb the impact force of the cage body 110 rising or sinking vertically, converting the impact force into elastic buffering, significantly reducing structural stress. The bottom of the cage body 110 is connected to another James coupler 310. The two James couplers 310 can be docked and locked together. The James couplers 310 can be quickly connected and separated with high connection stability, ensuring the connection strength between the cage body 110 and the buffer unit 330. The unlocking unit 320 is disposed on the James coupler 310 and can assist the James coupler 310 in quickly unlocking.

[0043] In practical implementation, the James coupler 310 is a mechanical connection device with an interlocking structure. Specifically, it can be implemented using a coupler structure with a hook tongue and locking mechanism. Its function is to achieve rapid connection and separation between the net cage body 110 and the seabed buffer unit 330. The unlocking unit 320 is a device for controlling the locking state of the coupler. Specifically, it can be implemented using an electric push rod to drive the locking pin movement. Its function is to release the locking state between the couplers according to operational needs. The buffer unit 330 is a device for absorbing impact energy. Specifically, it can be implemented using a spring, hydraulic damper, or rubber buffer. Its function is to mitigate the instantaneous impact force generated when the net cage body 110 touches the bottom.

[0044] When the net cage body 110 needs to sink to the seabed, the two Zhan-type couplers 310 lock together to form a rigid connection between the net cage body 110 and the buffer unit 330. The buffer unit 330 is vertically fixed to the seabed. At the moment the net cage body 110 touches the bottom, the buffer unit 330 absorbs the impact energy through elastic deformation, preventing the net cage body 110 from directly colliding with the seabed. At the same time, when the net cage body 110 is affected by water currents and floats relatively, the buffer unit 330 can also absorb the impact energy through elastic deformation. The unlocking unit 320 changes the insertion depth by driving the locking pin, which can release the coupler locking state at any time, making it convenient for the net cage body 110 to float again or adjust its position.

[0045] The lack of a buffer structure when the traditional lifting gabion reaches the bottom causes the gabion body 110 to make rigid contact with the seabed, which can easily cause structural damage. This solution uses the buffer unit 330 in conjunction with the coupler to transform the impact of reaching the bottom into elastic cushioning, significantly reducing structural stress. At the same time, the coupler locking mechanism ensures connection stability, and the unlocking unit 320 enables rapid separation.

[0046] In some embodiments, please refer to Figure 7 and Figure 8 The unlocking unit 320 includes a linear drive 321 and a locking pin. The locking pin is inserted into the Jan coupler 310. The drive end of the linear drive 321 is fixedly connected to the locking pin. The linear drive 321 can change the insertion depth of the locking pin to lock or unlock the Jan coupler 310, thereby locking and releasing the locking tongue and controlling the locking and releasing of the Jan coupler 310.

[0047] In practical implementation, the linear drive component 321 can be an electric push rod, the housing of which is fixedly connected to the housing of the James coupler 310. The locking pin is a rigid component inserted into the James coupler 310 to achieve a locking function; it can be made of stainless steel or titanium alloy, and its function is to change the locking state of the coupler by adjusting the insertion depth. The telescopic rod of the electric push rod is fixedly connected to the locking pin, allowing control of the relative movement of the locking pin.

[0048] When it is necessary to disconnect the cage body 110 from the seabed buffer unit 330, the linear drive component 321 will drive the locking pin to retract axially, causing it to disengage from the coupler's locking structure, thereby achieving rapid separation of the two Zhan-type couplers 310. In the locked state, the linear drive component 321 pushes the locking pin to fully insert into the coupler's pin hole, forming a rigid connection. This process is precisely controlled through mechanical transmission, avoiding the safety hazards caused by manual operation.

[0049] In some embodiments, the bottom-contact buffer protection components 300 are arranged in an array relative to the cage body 110, and act evenly on the cage body 110, so that the force on each area of ​​the bottom of the cage body 110 is relatively uniform, and the cage body 110 is prevented from tilting due to uneven force.

[0050] In the specific implementation process, the bottom impact buffer protection component 300 is a protective structure composed of a buffer unit 330, a James coupler 310 and an unlocking unit 320. Multiple bottom impact buffer protection components 300 are evenly distributed around the bottom of the cage body 110 in a symmetrical or ring manner. Specifically, four or six sets of components can be arranged at equal intervals along the circumference of the cage to ensure that the impact force is dispersed and transmitted.

[0051] When the cage body 110 sinks to the seabed, multiple bottom-contact buffer protection components 300 simultaneously contact the cage body 110, absorbing the impact energy through elastic buffers. Simultaneously, each component is locked and secured to the cage body 110 via a James coupler 310. Due to the array arrangement of the components, the impact load is evenly distributed to different positions on the bottom of the cage, preventing structural deformation or damage caused by concentrated stress in localized areas. When it is necessary to lift the cage, the unlocking unit 320 releases the locking pin via the linear drive component 321, separating the cage body 110 from the seabed buffer unit 330.

[0052] In some embodiments, please refer to Figure 1 The lifting cage 100 also includes legs 120 and a gear transmission unit 130 disposed between the legs 120 and the cage body 110. The gear transmission unit 130 can drive the cage body 110 to move up and down relative to the legs 120. The gear transmission unit 130 transmits power through a rigid meshing structure, which can effectively resist external load fluctuations and ensure the synchronization and accuracy of the lifting process.

[0053] In practical implementation, the leg 120 is a vertical support structure fixed to the seabed, which can be implemented using steel piles or concrete piles, providing stable foundation support for the cage body 110. The bottom of the leg 120 is inserted into the seabed and fixedly connected to the seabed foundation. The top of the leg 120 extends upward to above the sea surface. The gear transmission unit 130 is a power transmission mechanism composed of a gear set, a transmission shaft, and a drive motor. Specifically, it can be implemented by combining a rack and pinion mechanism with a servo motor, converting rotational motion into linear lifting motion of the cage body 110 through gear meshing.

[0054] When the depth of the cage body 110 needs to be adjusted, the drive motor starts and drives the gear set to rotate. The transmission shaft transmits power to the cage body 110, causing it to rise and fall smoothly along the vertical direction of the pile legs 120. For example, in the event of severe sea conditions, the gear transmission unit 130 can drive the cage body 110 to sink to a set depth to avoid direct impact from wind and waves.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of the present invention.

Claims

1. A damping and vibration reduction system for a marine aquaculture lifting cage, characterized in that, include: A lifting mesh cage, wherein the lifting mesh cage includes a mesh cage body that can be lifted and moved; A damping vibration reduction assembly includes a damping vibration reduction unit and a cleaning unit. The damping vibration reduction unit includes a weighted ball, a connector, and a horizontally arranged vibration reduction module. The weighted ball is suspended from the net cage body by a cable to reduce the amplitude of the net cage body. The fixed end of the vibration reduction module is fixedly connected to the bottom of the net cage body. The two ends of the connector are respectively connected to the movable end of the vibration reduction module and the side of the weighted ball to limit the swing limit of the weighted ball. The cleaning unit includes a lever connected to the movable end of the vibration reduction module. The vibration reduction module can absorb the vibration energy while driving the lever to reciprocate relative to the bottom of the net cage body, thereby knocking off the deposits attached to the net cage body.

2. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 1, characterized in that, The vibration damping module includes a movable sliding member. One end of the paddle is fixedly connected to the sliding member, and the other end of the paddle abuts against the cage body. The sliding member can drive the paddle to reciprocate to strike the bottom of the cage body.

3. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 2, characterized in that, The vibration damping module also includes a horizontally arranged trough and an elastic element. The trough is fixedly connected to the cage body. The sliding element is slidably engaged in the trough. Both ends of the sliding element are connected to the ends of the trough through the elastic element. One end of the connecting element is hinged to the sliding element.

4. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 3, characterized in that, The lever includes a support body fixedly connected to the sliding member and lever teeth. One end of the lever teeth is fixedly connected to the support body, and the other end of the lever teeth abuts against the bottom of the cage body. A plurality of lever teeth are arranged at equal intervals along the support body.

5. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 4, characterized in that, Multiple vibration damping modules are arranged at equal intervals around the weighted ball, and each vibration damping module is connected to the weighted ball through the connector.

6. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 1, characterized in that, It also includes a bottom-contact buffer protection component, which includes two James couplers, an unlocking unit, and a vertically arranged buffer unit. One end of the buffer unit is fixedly connected to the seabed, and the other end of the buffer unit is connected to one of the James couplers. The bottom of the cage body is connected to the other James coupler, and the two James couplers can be docked and locked. The unlocking unit is provided on the James coupler for unlocking.

7. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 6, characterized in that, The buffer unit is an elastic buffer.

8. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 7, characterized in that, The unlocking unit includes a linear drive component and a locking pin. The locking pin is inserted into the James coupler. The drive end of the linear drive component is fixedly connected to the locking pin. The linear drive component can change the insertion depth of the locking pin to lock or unlock the James coupler.

9. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 8, characterized in that, Multiple bottom-contact buffer protection components are arranged in an array relative to the cage body to provide uniform action on the cage body.

10. The damping and vibration reduction system for a marine aquaculture lifting cage according to claim 1, characterized in that, The lifting cage also includes legs and a gear transmission unit disposed between the legs and the cage body. The gear transmission unit can drive the cage body to move up and down relative to the legs.

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