A lifting cage device and its operation method

Abstract

This invention discloses a lifting cage device, including a breeding cage body. The breeding cage body includes a frame and a net. A lifting control unit is installed at the arc-shaped tube body. This lifting control unit has a vertical pipe connected to the arc-shaped tube body. A water seal pipe is connected to the vertical pipe. The water seal pipe has a connecting channel and a vertical channel. One end of the connecting channel is connected to the vertical pipe, and the other end is connected to the vertical channel. The connecting channel has a water seal structure. The vertical channel has an upper exhaust port and a lower drain port. A control switch is installed on the water seal pipe. An air-blocking component is installed inside the water seal pipe. The air-blocking component is located between the control switch and the upper exhaust port, and the part connecting the connecting channel and the vertical channel is located between the air-blocking component and the upper exhaust port. Compared with the prior art, the frame structure of this type allows for sufficient water intake and drainage, and air intake and exhaust when the breeding cage body sinks and floats, preventing the phenomenon of free liquid surface, thereby ensuring the overall stability of the breeding cage body during sinking and floating, and making operation simple.

Description

Technical Field

[0001] This invention relates to the technical field of aquaculture cages for aquaculture. 。 Background Technology

[0002] Currently, due to limitations in technology, equipment, and production practices, almost all of my country's marine aquaculture is confined to harbors and coastal waters, leading to significant conflicts over sea use. Simultaneously, the blind and disorderly expansion and growth of aquaculture scale have exacerbated its drawbacks. Nearshore marine aquaculture is already saturated, with some areas even exceeding the carrying capacity of the marine environment, constantly squeezing aquaculture space and severely restricting the sustainable development of my country's marine aquaculture industry, even causing serious economic, ecological, and social problems. Therefore, promoting the expansion of marine aquaculture from nearshore areas to bays and deeper waters is an inevitable trend and a feasible strategy for optimizing the spatial layout of marine aquaculture and promoting the transformation and upgrading of the industry. However, since the waters outside the bay and deep sea are open sea areas with extremely harsh sea conditions, and my country's coastal areas are affected by typhoons every year, deep-sea aquaculture is an industry that is seriously affected by the marine wind and wave environment. Developing deep-sea aquaculture outside the bay requires overcoming the unknown risks brought about by harsh sea conditions and extreme weather. At present, the most common and effective measure is to take advantage of the natural law that the wave intensity decreases rapidly with the increase of water depth and sink deep-sea lifting cages to the seabed for aquaculture or sink the cages to the seabed before the arrival of typhoons, thereby effectively avoiding the impact of harsh sea conditions and extreme weather such as typhoons.

[0003] Existing lifting cages generally consist of a frame and a mesh cover. The frame is a hollow frame with open ends, spliced ​​together from several HDPE pipes. The HDPE pipes are partially connected for water inlet and outlet and air inlet and outlet, forming a variable buoyancy cavity. There are air inlet and outlet ports at the top and bottom of the frame. The mesh cover is wrapped around the side wall of the frame. When this type of lifting cage needs to sink, water is discharged into the pipes through the air inlet and outlet ports, and the pipes are filled with water and sink. When it needs to rise, air is inflated into the pipes through the air inlet and outlet ports, so that the water is discharged and the pipes are filled with gas and float.

[0004] However, because the frame of this type of lifting cage is spliced ​​using arc-shaped T-joints, there are arc-shaped corners at all four corners of the frame. This can cause water or air to accumulate in the T-joints during drainage, resulting in incomplete drainage or air intake. Consequently, the cage may become unstable during its rising and falling or tilt, and may even overturn and capsize due to excessive tilt angle, making it impossible to lift or lower.

[0005] In view of this, the inventor of this case conducted in-depth research on the lifting cage, which led to the creation of this case. Summary of the Invention

[0006] The purpose of this invention is to provide a lifting device for a net cage that ensures the frame can fully drain and vent water without water or air accumulation, and that the net cage can float and sink smoothly without tilting.

[0007] Another objective of this invention is to provide an operating method for a lifting cage device that ensures the frame can fully drain and vent air without water or air accumulation, and guarantees a stable floating and sinking process without tilting. 。

[0008] To achieve the above objectives, the technical solution of the present invention is: a lifting cage device, comprising a breeding cage, the breeding cage comprising a frame and a mesh cover installed on the frame, the frame having an upper frame, a lower frame, and connecting columns connecting the upper frame and the lower frame, the upper frame having an air inlet for air intake and exhaust, the lower frame having a water inlet for water intake and exhaust, and the upper frame having arc-shaped tubes for connection at the four corners; a lifting control unit is installed at the arc-shaped tubes, the lifting control unit having a vertical pipe connected to the arc-shaped tubes, and a water seal integrally formed on the vertical pipes to form a water seal structure. The water seal pipe has a curved connecting channel and a vertically extending vertical channel. One end of the connecting channel is connected to the vertical pipe and the other end is connected to the vertical channel. The connecting channel has a water seal structure that can form a water seal effect. The vertical channel is provided with an upper exhaust port and a lower drain port arranged vertically. A control switch is installed between the upper exhaust port and the lower drain port on the water seal pipe to control the opening or closing of the lower drain port. The water seal pipe is provided with an air-blocking component that can float up and seal the upper exhaust port. The air-blocking component is located between the control switch and the upper exhaust port, and the part connecting the connecting channel and the vertical channel is located between the air-blocking component and the upper exhaust port.

[0009] The aforementioned water seal pipe comprises an upper horizontal pipe, a lower horizontal pipe, a vertical connecting pipe, and a vertical pipe. The upper and lower horizontal pipes are arranged in parallel and staggered positions, and the vertical connecting pipe is located between the upper and lower horizontal pipes. The first end of the upper horizontal pipe is connected to the upper end of the vertical pipe and integrally formed. The upper end of the vertical connecting pipe is connected to the second end of the upper horizontal pipe and integrally formed. The lower end of the vertical connecting pipe is connected to the first end of the lower horizontal pipe and integrally formed. The second end of the lower horizontal pipe is vertically connected to the lower side wall of the vertical pipe and integrally formed. The hollow chambers of the upper horizontal pipe, the lower horizontal pipe, and the vertical connecting pipe constitute the connecting channel. The hollow chamber of the vertical pipe constitutes the vertical channel. The upper horizontal pipe and the vertical connecting pipe constitute the water seal structure.

[0010] The lower end of the aforementioned vertical pipe is equipped with a ball valve whose control handle is located outside the vertical pipe; this ball valve serves as the control switch.

[0011] The aforementioned vertical pipe is a pipe body that is open at the bottom and closed at the top. A circular air hole is opened on the upper end face of the aforementioned vertical pipe, which is the upper exhaust port, and the lower end port of the vertical pipe is the lower drain port.

[0012] The aforementioned air-blocking component is a hollow float or foam ball, and the diameter of the air-blocking component is larger than the diameter of the aforementioned upper exhaust port.

[0013] A method for operating a lifting cage device includes sinking and fishing operations;

[0014] The fishing operation is completed through the following steps: using an air compressor connected to an air inlet, gas is injected into the frame. The gas inflates the frame from top to bottom, and the seawater inside the frame is squeezed out through the water inlet. The water in the upper horizontal pipe and vertical pipe is discharged downwards along with the water level in the upper frame. The downward force on the arc-shaped pipe prevents water accumulation inside the arc-shaped pipe. The aquaculture tank steadily drains the water inside the frame from top to bottom and floats smoothly. At the same time, the vertical connecting pipe, lower horizontal pipe and vertical pipe are affected by the height difference, so that the water inside cannot be discharged and remains inside, which is used for sinking and venting.

[0015] The sinking operation is completed as follows: After the harvesting operation is completed, when the aquaculture tank needs to be sunk, first turn on the control switch. The water in the lower horizontal pipe, vertical connecting pipe and vertical pipe flows downward and is discharged through the lower drain outlet. Then, turn off the control switch, the air plug falls downward, the upper exhaust outlet is opened, seawater flows in from the water inlet, the water level in the frame gradually rises, the aquaculture tank gradually sinks, the gas in the frame is discharged from the air outlet, and the gas in the arc-shaped pipe is squeezed out to the vertical pipe, upper horizontal pipe, vertical connecting pipe, lower horizontal pipe and vertical pipe due to the rising water level, and finally discharged through the upper exhaust outlet. The vertical pipe, upper horizontal pipe, vertical connecting pipe, lower horizontal pipe and vertical pipe gradually fill with water, the air plug floats up and seals the upper exhaust outlet, the gas in the frame is completely discharged, the aquaculture tank sinks to the predetermined position, and the sinking of the aquaculture tank is completed.

[0016] By adopting the above technical solution, the lifting cage device of the present invention, when the aquaculture cage is lowered and filled with water, the gas inside the frame, especially the gas at the arc-shaped tube, will be squeezed into the connecting channel along with the injected water, and then discharged through the vertical channel and the upper exhaust port, so that no gas remains in the upper frame at the arc-shaped tube. This prevents the water level inside the upper frame from becoming free-floating, ensuring the entire frame is completely filled with water. This avoids the problem of the aquaculture cage tilting due to air accumulation at the arc-shaped tube when the upper frame is lowered, thus ensuring the stable descent of the aquaculture cage. When the breeding tank floats and drains, the drop in water level in the vertical pipe exerts a downward force on the curved pipe, ensuring no water accumulates inside. This allows for completely and evenly venting throughout the entire frame, avoiding the tilting problem caused by water accumulation at the curved pipe location during the floatation of traditional breeding tanks. This ensures stable floating of the breeding tank. Simultaneously, a water seal structure within the connecting pipes allows seawater to remain in the vertical channels, sealing off air and preventing leakage. During the next sinking, the water in the vertical channels is drained to allow for complete venting during frame sinking. Compared to existing technologies, this frame structure allows for sufficient water intake and drainage, as well as air intake and exhaust, during both sinking and floating of the breeding tank, preventing free surface phenomena and ensuring overall stable floating of the breeding tank. It is also easy to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the lifting control unit.

[0019] Figure 3 A schematic diagram showing the lifting control unit filled with water;

[0020] Figure 4 This is a schematic diagram showing the air resistance state of the lifting control unit.

[0021] Figure 5 This is a schematic diagram showing the ventilation status of the lifting control unit. Detailed Implementation

[0022] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0023] This embodiment discloses a lifting cage device, such as Figure 1-5As shown, the invention includes a breeding tank, which comprises a frame and a mesh cover 1 that is extended and mounted on the frame. The frame has an upper frame 21, a lower frame 22, and a connecting column 23 connecting the upper and lower frames. The upper frame 21 has an air inlet 211 for air intake and exhaust. The structure of the upper frame 21 adopts the existing mesh tank structure, and the air inlet 211 is also an existing design, preferably located in the central area of ​​the upper frame 21. The lower frame 22 has a water inlet 221 for water intake and exhaust. The structure of the lower frame 22 also adopts the existing mesh tank structure, and the water inlet 221 is also an existing design, preferably located in the central area of ​​the lower frame 22. In this invention, the operation of the air inlet and water inlet, which enables the breeding tank to float or sink, is a well-known technique and will not be repeated here.

[0024] The innovation of this invention lies in the following: the upper frame 21 has arc-shaped tubes 212 for connection at its four corners, and a lifting control unit is installed at the arc-shaped tubes 212. This lifting control unit has a vertical pipe 3 connected to the arc-shaped tubes 212. The vertical pipe 3 is integrally formed and connected to the arc-shaped tubes 212. A water seal pipe capable of forming a water seal structure is integrally formed and connected to the vertical pipe 3. The water seal pipe has a curved connecting channel and a vertically extending vertical channel. One end of the connecting channel is connected to the vertical pipe, and the other end is connected to the vertical channel. The connecting channel has a water seal structure capable of forming a water seal effect. Preferably, the water seal pipe has an upper horizontal pipe 41, a lower horizontal pipe 42, a vertical connecting pipe 43, and a vertical pipe 44. The upper horizontal pipe 41 and the lower horizontal pipe 42 are arranged in parallel and staggered positions, and the vertical connecting pipe 43 is located between the upper horizontal pipe 41 and the lower horizontal pipe 42. The upper horizontal pipe 41 is higher than the vertical pipe 3. The first end of the upper horizontal pipe 41 is connected to the vertical pipe 3 through a connecting bend. The upper ends of pipe 3 are connected and integrally formed. Vertical connecting pipe 43 is lower than upper horizontal pipe 41. The upper end of vertical connecting pipe 43 is connected to the second end of upper horizontal pipe 41 through a connecting bend and integrally formed. Lower horizontal pipe 42 is located below vertical connecting pipe 43. Upper and lower horizontal pipes are located on both sides of vertical connecting pipe. The first end of lower horizontal pipe is integrally formed to the lower end of vertical connecting pipe 43 through a connecting bend. The lower end of vertical connecting pipe 43, vertical pipe 44 is located below lower horizontal pipe. The second end of the vertical pipe 44 is longer than the distance between the upper and lower horizontal pipes. The second end of the lower horizontal pipe 42 is perpendicular to and connected to the lower end of the vertical pipe 44, and is integrally formed. The hollow chamber of the upper horizontal pipe 41, the hollow chamber of the lower horizontal pipe 42, and the hollow chamber of the vertical connecting pipe 43 constitute the connecting channel. The hollow chamber of the vertical pipe 44 constitutes the vertical channel. The upper horizontal pipe 41 and the vertical connecting pipe 43 constitute the water seal structure.

[0025] The vertical channel is provided with an upper exhaust port and a lower drain port arranged vertically. A control switch 5 is installed between the upper exhaust port and the lower drain port in the water seal pipe to control the opening or closing of the lower drain port. The water seal pipe is provided with an air-blocking component 6 that can float up and seal the upper exhaust port. The air-blocking component 6 is located between the control switch and the upper exhaust port, and the part of the connecting channel that connects to the vertical channel is located between the air-blocking component and the upper exhaust port.

[0026] Preferably, the vertical pipe 44 is a pipe body with an open lower end and a closed upper end. A circular air hole 441 is provided on the upper end face of the vertical pipe 44. This circular air hole 441 is the upper exhaust port, and the lower end port of the vertical pipe is the lower drain port.

[0027] The lower end of the vertical pipe 44 is equipped with a ball valve that controls the opening or closing of the lower drain outlet, and its control handle is located outside the vertical pipe 44. This ball valve is the control switch 5.

[0028] The air-blocking component 6 is a hollow float or a foam ball. The air-blocking component can also be an object with buoyancy that can block the upper exhaust port. The diameter of the air-blocking component 6 is larger than the diameter of the upper exhaust port.

[0029] In the lifting cage device of this invention, when the aquaculture cage is lowered and filled with water, the gas inside the frame, especially the gas at the arc-shaped tube, is squeezed into the vertical pipe along with the injected water, and then discharged through the upper exhaust port of the vertical pipe. This ensures that no gas remains in the upper frame located at the arc-shaped tube, thus preventing the water level inside the upper frame from becoming free surface. The entire frame is completely filled with water, avoiding the problem of the aquaculture cage tilting due to air accumulation at the arc-shaped tube when the upper frame is lowered in traditional aquaculture cages, ensuring a stable descent of the aquaculture cage; and the device also allows for drainage when the aquaculture cage floats up. During this process, the drop in water level in the vertical pipe exerts a downward force on the curved pipe, ensuring no water accumulates within it. This allows for completely and evenly venting throughout the entire frame, preventing the traditional aquaculture tank from tilting due to water accumulation at the top of the frame where the curved pipe is located. This ensures stable buoyancy. Simultaneously, a water seal structure within the connecting pipes allows seawater to remain in the vertical channels, blocking air leakage. During the next sinking, the water in the vertical channels is drained to facilitate complete venting during frame descent. Compared to existing technologies, this frame structure allows for sufficient water intake and drainage, as well as air intake and venting, during both sinking and buoyancy, preventing free surface phenomena and ensuring overall stable buoyancy. Furthermore, it is easy to operate.

[0030] The present invention provides a method for operating a lifting cage device, which includes sinking and fishing operations;

[0031] The harvesting operation is completed through the following steps: An air compressor is connected to air inlet 211 to inject gas into the frame. The gas inflates the frame from top to bottom, causing seawater inside the frame to be squeezed out through the inlet. Water in the upper horizontal pipe 41 and vertical pipe 3 is discharged downwards along with the water level in the upper frame, creating a downward force on the arc-shaped pipe 212 to prevent water accumulation. The aquaculture tank steadily drains the water from the frame from top to bottom, allowing it to float smoothly. Simultaneously, the vertical connecting pipe, lower horizontal pipe, and vertical pipe are affected by the height difference, preventing water from draining and causing it to remain inside for later venting. At this time, the lifting control unit is in a blocked air state. Figure 4 As shown, the gas inside the upper frame cannot be discharged from the lifting control unit;

[0032] The sinking operation is completed as follows: After the harvesting operation is completed and the aquaculture tank needs to be sunk, first turn on control switch 5, such as... Figure 5 As shown, water in the lower horizontal pipe, vertical connecting pipe, and vertical pipe flows downwards and is discharged through the lower drain outlet. Control switch 5 is closed, air-blocking component 6 falls downwards, the upper exhaust port is opened, seawater flows in from the water inlet, the water level in the frame gradually rises, the aquaculture tank gradually sinks, and the gas in the frame is discharged from the air outlet. The gas at the arc-shaped pipe is squeezed out by the rising water level into the vertical pipe 3, upper horizontal pipe 41, vertical connecting pipe 43, lower horizontal pipe 42, and vertical pipe 44, and finally discharged through the upper exhaust port. Water is also gradually filled into the vertical pipe, upper horizontal pipe, vertical connecting pipe, lower horizontal pipe, and vertical pipe. Air-blocking component 6 floats upwards due to the rising water level, sealing the upper exhaust port, and the gas in the frame is completely discharged. Figure 3 As shown, the aquaculture container is lowered to the predetermined position, completing the placement of the aquaculture container.

[0033] The above operating method can completely expel the gas in the pipes when the entire frame is filled with water, and can also expel the gas from the curved pipes when filling with air, and prevent the gas from leaking out from the vertical pipes. This ensures that there is no free liquid surface phenomenon during the rising or sinking of the frame, and ensures that the entire breeding tank floats and sinks stably. At the same time, it only requires one switch to control the switch, making the operation simple.

[0034] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A lifting net cage device comprising a culture cage body, the culture cage body comprising a frame and a netting installed on the frame in an expanded manner, the frame having an upper frame body, a lower frame body and connecting uprights connected between the upper frame body and the lower frame body, the upper frame body having air ports for air intake and exhaust, the lower frame body having water ports for water intake and exhaust, the upper frame body having arc-shaped pipe bodies at four corners for connection; characterized in that: The arc-shaped pipe body is provided with a lifting control unit, the lifting control unit is provided with a vertical pipe communicated with the arc-shaped pipe body, the vertical pipe is integrally provided with a water seal pipe capable of forming a water seal structure, the water seal pipe is provided with a curved communication channel and a vertical channel, one end of the communication channel is communicated with the vertical pipe, the other end is communicated with the vertical channel, the communication channel is provided with a water seal structure capable of forming a water seal effect, the vertical channel is provided with an upper air outlet and a lower water outlet arranged vertically, the water seal pipe is arranged between the upper air outlet and the lower water outlet and is provided with a control switch capable of controlling the conduction or blockage of the lower water outlet, the water seal pipe is provided with a gas blocking piece capable of floating and sealing the upper air outlet, the gas blocking piece is arranged between the control switch and the upper air outlet, and the communication channel and the vertical channel are communicated between the gas blocking piece and the upper air outlet.

2. A lifting net cage apparatus as claimed in claim 1, characterised in that, The water seal pipe is provided with an upper horizontal pipe, a lower horizontal pipe, a vertical connecting pipe and a vertical pipe, the upper horizontal pipe and the lower horizontal pipe are arranged vertically and are vertically arranged between the upper horizontal pipe and the lower horizontal pipe, the first end of the upper horizontal pipe is communicated with the upper end of the vertical pipe and is integrally connected, the upper end of the vertical connecting pipe is communicated with the second end of the upper horizontal pipe and is integrally connected, the lower end of the vertical connecting pipe is communicated with the first end of the lower horizontal pipe and is integrally connected, the second end of the lower horizontal pipe is vertically communicated with the lower end of the vertical pipe and is integrally connected, the hollow chamber of the upper horizontal pipe, the hollow chamber of the lower horizontal pipe and the hollow chamber of the vertical connecting pipe form the communication channel, and the hollow chamber of the vertical pipe forms the vertical channel, and the upper horizontal pipe and the vertical connecting pipe form the water seal structure.

3. A lifting net cage apparatus as claimed in claim 2, characterised in that, The lower end of the vertical pipe is provided with a ball valve, the control handle of the ball valve is arranged outside the vertical pipe, and the ball valve is the control switch.

4. A lifting net cage apparatus as claimed in claim 2, c h a r a c t e r i s e d in that The vertical pipe is a pipe body with an open lower end and a closed upper end, a circular air hole is arranged on the upper end face of the vertical pipe, the circular air hole is the upper air outlet, and the lower end of the vertical pipe is the lower water outlet.

5. A lifting net cage apparatus as claimed in claim 2 or 4, characterised in that, The gas blocking piece is a hollow floating ball or a foam ball, and the diameter of the gas blocking piece is greater than the diameter of the upper air outlet.

6. The operation method of the lifting net cage device according to claim 2, comprising sinking operation and fishing operation; characterized in that: the fishing operation is completed by the following operation: the air compressor is communicated with the air port to inject gas into the frame, the gas inflates the frame from top to bottom, the seawater in the frame is squeezed out through the water port, the water in the upper horizontal pipe and the vertical pipe is discharged downward together with the water level in the upper frame body, the arc-shaped pipe body has a downward force to make the arc-shaped pipe body have no accumulated water, and the breeding cage body steadily discharges the water in the frame from top to bottom and floats up, and the vertical connecting pipe, the lower horizontal pipe and the vertical pipe are affected by the height difference, so that the water in the vertical connecting pipe, the lower horizontal pipe and the vertical pipe cannot be discharged and is retained in the vertical connecting pipe, the lower horizontal pipe and the vertical pipe for sinking and discharging. The sinking operation is completed by the following operation: after the fishing operation is completed, the culture box needs to sink, first open the control switch, the water in the lower horizontal pipe, vertical connecting pipe and vertical pipe flows downward through the lower water outlet, the control switch is closed, the air blocking piece falls downward, the upper air outlet is conducted, seawater flows into the water outlet, the water level in the frame gradually rises, the culture box also gradually sinks, the gas in the frame is discharged from the air outlet, and the gas at the arc-shaped pipe body is squeezed out to the vertical pipe, the upper horizontal pipe, the vertical connecting pipe, the lower horizontal pipe and the vertical pipe due to the influence of the rising water level, and finally discharged through the upper air outlet, the vertical pipe, the upper horizontal pipe, the vertical connecting pipe, the lower horizontal pipe and the vertical pipe are gradually filled with water, the air blocking piece floats up to block the upper air outlet, the gas in the frame is completely discharged, the culture box sinks to the predetermined position, and the sinking of the culture box is completed.

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