Typhoon-resistant offshore net cage and fishing net lifting device

Abstract

The anti-typhoon offshore net cage and fishing net lifting device comprises a supporting platform, a double-cavity air bag floating ring, a plurality of traction steel wires, a plurality of connecting rods, a fishing net, a closing opening and an outer protection frame, a first winding machine is installed between the connecting rods, and a second winding machine is installed at the top end of the first winding machine; a plurality of tightening ropes are installed on the inner side of the closing opening, a bottom ring is installed on the side wall of the fishing net and located at the bottom of the fishing net, and the second winding machine winds the tightening ropes; the double-cavity air bag floating ring is subjected to water pumping, water drainage and air control through the axial flow type water pump and the vacuum air pump, so that the buoyancy of the double-cavity air bag floating ring can be adjusted, the device is immersed into seawater in typhoon weather, the risks that the net cage and ancillary facilities are blown away, deformed, damaged and the like due to wind power are reduced, and the service life of the net cage is prolonged. The influence on the subsequent breeding operation process is reduced, and the maintenance cost and the interruption time of the breeding operation are reduced or avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore net cages, and in particular to a typhoon-resistant offshore net cage and a fishing net lifting device. Background Art

[0002] In the field of aquaculture, cages are widely used facilities, especially in large-scale aquaculture scenarios such as marine ranches. The relatively closed space surrounded by fishing nets effectively limits the range of activities of farmed aquatic animals and confines them to the inside of the cages, which greatly facilitates farmers to carry out a series of centralized management operations such as feeding, monitoring growth conditions, and disease prevention and control. However, in actual use, the existing design of cages has some significant defects, especially in the face of severe weather such as typhoons, these problems are more prominent.

[0003] The top of the common cages is usually open. When a typhoon hits, the strong typhoon and the huge waves that follow will violently attack the marine ranch. In this case, the cage will inevitably shake violently. Since the top is open, when the cage tilts due to shaking, the fish inside the cage will slide into the sea water through the opening and escape. The large-scale escape of such fish will undoubtedly cause serious economic losses to the farmers and directly affect the economic benefits of the aquaculture industry.

[0004] In addition, in typhoon weather, various related facilities on the water surface, including pontoons, platforms, and fishing net lifting equipment, will also be greatly affected. Strong winds will exert huge forces on these facilities, making them prone to structural damage, which will affect the subsequent aquaculture operation process. In addition, equipment damage will also increase maintenance costs and interruption time of aquaculture operations. To this end, we propose a typhoon-resistant offshore net cage and fishing net lifting device. Summary of the invention

[0005] The main purpose of the present invention is to provide a typhoon-resistant offshore net cage and a fishing net lifting device.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A typhoon-resistant offshore net cage and fishing net lifting device, comprising a supporting platform, a double-chamber airbag float, a plurality of traction steel wires, a plurality of connecting rods, a fishing net, a closing and an external protection frame, a first winder is installed between the plurality of connecting rods, a second winder is installed at the top of the first winder, a plurality of tightening ropes are installed inside the closing, a bottom ring is installed on the side wall of the fishing net, the bottom ring is located at the bottom of the fishing net, the second winder winds up the plurality of tightening ropes, a plurality of traction ropes are wound in the second winder, the plurality of traction ropes pull the bottom ring, an axial flow water pump and a vacuum air pump are installed on both sides of the supporting platform, The axial flow water pump regulates the amount of water inside the double-chamber airbag float, and the vacuum air pump regulates the amount of air inside the double-chamber airbag float. The double-chamber airbag float is provided with two upper and lower cavities, and the double-chamber airbag float is respectively connected to the axial flow water pump and the vacuum air pump through the two cavities. The support platform is provided with a monitoring module, and the monitoring module includes a wind speed sensor, a wave sensor and a PLC control module. The PLC control module releases a wireless control signal to the first winder, the axial flow water pump and the vacuum air pump, and the PLC control module controls the first winder, the axial flow water pump and the vacuum air pump to start.

[0008] A further improvement of the present invention is that a plurality of the side walls of the traction wire are installed with a spiral tightener, the PLC control module releases a wireless control signal to the spiral tightener, and the PLC control module adjusts the length of the traction wire through the spiral tightener.

[0009] A further improvement of the present invention is that a plurality of sliders are installed on the outer side of the bottom ring, a plurality of slide grooves are opened on the inner side of the outer protective frame, a plurality of spherical rolling bodies are arranged on the side walls of the sliders, the plurality of spherical rolling bodies are all slidably connected to the corresponding inner walls of the slide grooves, and one end of the traction rope is installed on the corresponding top end of the slider.

[0010] A further improvement of the present invention is that a pumping and discharging pipe is installed at the bottom of the axial flow water pump, and the bottom end of the pumping and discharging pipe faces the seawater.

[0011] A further improvement of the present invention is that an exhaust pipe is installed at the top of the vacuum air pump, the exhaust pipe is in the opposite direction to the exhaust pipe, and a water blocking valve is installed at the top of the exhaust pipe.

[0012] A further improvement of the present invention is that a typhoon-resistant offshore net cage and a fishing net lifting device comprises the following steps:

[0013] S1. During the fishing season, the second winder is controlled to wind up several traction ropes, so that the traction ropes can pull the slider and the bottom ring up, and the bottom ring drives the bottom of the fishing net to complete the lifting, so that the fish inside the fishing net can be lifted to a position close to the water surface, which is convenient for subsequent fishing work. After fishing is completed, the second winder is controlled to unwind the traction rope, so that the bottom ring can pull the fishing net down, and the bottom ring and the fishing net automatically return to their positions;

[0014] S2. When typhoon weather occurs, the wind speed sensor and the wave sensor timely sense the environmental factors and transmit the monitoring data to the PLC control module. The PLC control module controls the first winder, the axial flow water pump and the vacuum air pump to start working, so that the first winder can timely wind up several tightening ropes, and the several tightening ropes will reduce the closing opening to cover the fish inside the fishing net and reduce the loss caused by the escape of fish. At the same time, the axial flow water pump and the vacuum air pump exhaust and inject water into the two cavities inside the double-chamber airbag float respectively, so that the buoyancy of the double-chamber airbag float decreases, and the device is immersed in the sea water to reduce the impact of the typhoon;

[0015] S3. After the typhoon weather ends, the PLC control module controls the first winder, axial flow water pump and vacuum air pump again. The axial flow water pump and vacuum air pump inflate and drain the two cavities inside the double-cavity air bag float. At this time, the buoyancy of the double-cavity air bag float is increased, so that the net cage is lifted to the water surface, so that after avoiding the typhoon, the device can return to its position in time to continue the breeding work.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by timely winding up a plurality of tightening ropes through the first winding machine, the closing opening can be reduced, thereby shielding the fish inside the fishing net, reducing the fish from sliding into the sea water along the closing opening and then escaping, reducing economic losses and improving the economic benefits of the aquaculture industry.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the axial flow water pump and the vacuum air pump are used to control the drainage and exhaust of the double-chamber airbag float, so that the buoyancy of the double-chamber airbag float can be adjusted, and then in typhoon weather, the device is immersed in the sea water, and the water above it blocks most of the wind force from directly acting on the cage. When the typhoon passes through the water surface, most of the wind force cannot penetrate underwater and directly act on the cage, thereby reducing the risk of the cage and its ancillary facilities being blown away, deformed, damaged, etc. due to wind force, reducing the subsequent impact on the aquaculture operation process, and reducing or avoiding maintenance costs and interruption time of aquaculture operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional structural schematic diagram of a typhoon-resistant offshore net cage and a fishing net lifting device.

[0019] Figure 2 The present invention is a schematic diagram of the three-dimensional disassembled structure of a typhoon-resistant offshore net cage and a fishing net lifting device.

[0020] Figure 3 The present invention is a three-dimensional schematic diagram of a typhoon-resistant offshore net cage and a fishing net in a fishing net lifting device.

[0021] Figure 4 The invention discloses a typhoon-resistant offshore net cage and a fishing net lifting device Figure 2 Enlarged schematic diagram of part A in the middle.

[0022] Figure 5 The present invention is a schematic diagram of the use process of a typhoon-resistant offshore net cage and a fishing net lifting device.

[0023] In the figure: 1. Support platform; 11. Double-chamber airbag float; 12. Traction wire; 121. Spiral tightener; 13. Connecting rod; 2. Fishing net; 21. Closing; 22. Tightening rope; 23. Bottom ring; 24. Slider; 241. Spherical rolling body; 3. External protection frame; 31. Slide; 4. First winder; 41. Second winder; 42. Traction rope; 5. Axial flow water pump; 51. Drain pipe; 6. Vacuum air pump; 61. Drain pipe; 62. Water blocking valve; 7. Monitoring module; 71. Wind speed sensor; 72. Wave sensor; 73. PLC control module. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments, wherein the accompanying drawings are only used for exemplary descriptions and represent only schematic diagrams rather than actual drawings, and should not be understood as limitations on this patent. In order to better illustrate the specific embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Example

[0026] See also Figure 1-Figure 5A typhoon-resistant offshore net cage and a fishing net lifting device, comprising a supporting platform 1, a double-chamber airbag float 11, a plurality of traction steel wires 12, a plurality of connecting rods 13, a fishing net 2, a closing 21 and an outer protective frame 3, a first winder 4 is installed between the plurality of connecting rods 13, a second winder 41 is installed at the top of the first winder 4, a plurality of tightening ropes 22 are installed inside the closing 21, a bottom ring 23 is installed on the side wall of the fishing net 2, the bottom ring 23 is at the bottom position of the fishing net 2, the second winder 41 winds up the plurality of tightening ropes 22, a plurality of traction ropes 42 are wound in the second winder 41, and the plurality of traction ropes 42 pull the bottom ring 23, and shafts are installed on both sides of the supporting platform 1. Axial flow water pump 5 and vacuum air pump 6, axial flow water pump 5 regulates the amount of water inside double-chamber airbag float 11, vacuum air pump 6 regulates the amount of air inside double-chamber airbag float 11, upper and lower cavities are arranged in double-chamber airbag float 11, double-chamber airbag float 11 is respectively connected with axial flow water pump 5 and vacuum air pump 6 through two cavities, support platform 1 is provided with monitoring module 7, monitoring module 7 comprises wind speed sensor 71, wave sensor 72 and PLC control module 73, PLC control module 73 releases wireless control signal to first winder 4, axial flow water pump 5 and vacuum air pump 6, PLC control module 73 controls and starts the first winder 4, axial flow water pump 5 and vacuum air pump 6.

[0027] In this embodiment: the support platform 1 floats on the sea surface through the double-chamber airbag float 11, the support platform 1 supports the fishing net 2 and the outer protection frame 3, the fishing net 2 and the outer protection frame 3 are in the sea water, and the outer protection frame 3 supports, limits and protects the outer side of the fishing net 2, so that the fishing net 2 can more stably confine the fish, and the fishing net 2 limits the farmed fish inside it to achieve marine farming, the support platform 1 supports the first winder 4 through a plurality of connecting rods 13, the first winder 4 supports the second winder 41, and the second winder 41 raises and lowers the bottom ring 23 through a plurality of traction ropes 42, so that the bottom ring 23 can drive the bottom of the fishing net 2 to complete the lifting operation, thereby facilitating the completion of subsequent fishing work, and a plurality of One end of each traction wire 12 is fixed on the support platform 1, and the other end is fixed on the seabed, so that several traction wires 12 can position the support platform 1 to ensure its stability during use. The top of the fishing net 2 is opened through the closing mouth 21, which is convenient for subsequent fishing or seedling release operations. Several tightening ropes 22 are distributed on the inner side of the closing mouth 21 in a circular array, so that several tightening ropes 22 can achieve uniform force on the fishing net 2. The first winder 4 winds up several tightening ropes 22 to adjust the length of the tightening ropes 22. The tightening ropes 22 are wound into the interior of the first winder 4, so that the tightening ropes 22 can reduce the opening of the closing mouth 21. The support platform 1 supports the axial flow water pump 5 and the vacuum air pump 6. When there is a During typhoon weather, the environmental wind force and wave intensity increase. At this time, the wind speed sensor 71 and the wave sensor 72 timely sense the environmental factors and transmit the monitoring data to the PLC control module 73. The PLC control module 73 controls the first winder 4, the axial flow water pump 5 and the vacuum air pump 6 to start working, so that the first winder 4 can timely wind up a plurality of tightening ropes 22, and the plurality of tightening ropes 22 narrow the opening of the closing 21 to cover the fish inside the fishing net 2, reduce the fish from sliding into the sea water along the closing 21, and then escape, reduce economic losses and improve the economic benefits of the aquaculture industry, and at the same time, the axial flow water pump 5 injects seawater into the corresponding cavity inside the double-chamber airbag float 11, so that the double-chamber airbag float 1 1 mass increases, and the vacuum air pump 6 evacuates the corresponding cavity inside the double-cavity airbag float 11, so that the air pressure inside the double-cavity airbag float 11 is reduced. By injecting water and exhausting air into the double-cavity airbag float 11, the buoyancy of the double-cavity airbag float 11 on the supporting platform 1 is reduced, so that the supporting platform 1 can drive the components of the device to sink and immerse in the sea water. When the net cage is underwater, the water above it blocks most of the wind force from directly acting on the net cage. When the typhoon passes through the water surface, part of the energy will be transferred to the water to form a water flow, but most of the wind force cannot penetrate underwater to directly act on the net cage, thereby reducing the risk of the net cage and its ancillary facilities being blown away, deformed, damaged, etc. due to wind force, and reducing the subsequent impact on the breeding operation process.Reduce or avoid maintenance costs and interruption time of farming operations.

[0028] Among them, spiral tighteners 121 are installed on the side walls of several traction wires 12, and the PLC control module 73 releases a wireless control signal to the spiral tighteners 121, and the PLC control module 73 adjusts the length of the traction wire 12 through the spiral tighteners 121; the spiral tighteners 121 use the spiral transmission principle to tighten the traction wire 12, and by rotating the screw, the sleeve moves along the axial direction of the screw, thereby tightening or loosening the traction wire 12. The use of the spiral tightener 121 is a prior art and is not an improvement point of the present invention. Its triggering principle will not be repeated here. When the device sinks into the sea water under a typhoon, the PLC control module 73 controls several spiral tighteners 121 to tighten the corresponding traction wires 12, so that the traction wire 12 can be in a taut state with the support platform 1, thereby improving the locking stability of the traction wire 12 on the support platform 1 after sinking.

[0029] Among them, a number of sliders 24 are installed on the outside of the bottom ring 23, a number of slide grooves 31 are opened on the inside of the outer protective frame 3, and a number of spherical rolling bodies 241 are arranged on the side wall of the slider 24. The several spherical rolling bodies 241 are all slidably connected to the inner wall of the corresponding slide groove 31, and one end of the traction rope 42 is installed on the top of the corresponding slider 24; the bottom ring 23 is connected to the slide groove 31 through a number of sliders 24, and the several slide grooves 31 guide and limit the slider 24, so that the bottom ring 23 can maintain stable balance when sliding on the inside of the outer protective frame 3, avoiding tilting or displacement of the bottom ring 23 when lifting the fishing net 2.

[0030] Among them, a suction and discharge pipe 51 is installed at the bottom of the axial flow water pump 5, and the bottom end of the suction and discharge pipe 51 faces the seawater; the axial flow water pump 5 supports the suction and discharge pipe 51, and the end of the suction and discharge pipe 51 is in the seawater, which makes up for the defect that the axial flow water pump 5 has no contact with the seawater in the initial stage. The end of the suction and discharge pipe 51 is opened to facilitate the entry of seawater into the interior, so that the axial flow water pump 5 can stably inject seawater into the corresponding cavity of the double-chamber airbag float 11.

[0031] Among them, an exhaust pipe 61 is installed at the top of the vacuum air pump 6, and the exhaust pipe 61 is in the opposite direction to the exhaust pipe 51, and a water-blocking valve 62 is installed at the top of the exhaust pipe 61; the vacuum air pump 6 supports the exhaust pipe 61, and the end of the exhaust pipe 61 is vertically upward, the upper opening of the exhaust pipe 61 is far away from the sea water, and the water-blocking valve 62 can prevent the intrusion of sea water, thereby reducing the interference of sea water on the vacuum air pump 6 when regulating the internal air of the double-chamber air bag float 11. When the device needs to rise from the water, the end of the exhaust pipe 61 is always above the water surface, so that air can be replenished in time, which is convenient for increasing the buoyancy of the double-chamber air bag float 11, so that the cage is lifted to the water surface.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A typhoon-resistant offshore net cage and a fishing net lifting device, comprising a supporting platform (1), a double-chamber airbag float (11), a plurality of traction wires (12), a plurality of connecting rods (13), a fishing net (2), a closing mouth (21) and an outer protective frame (3), characterized in that: A first reel (4) is installed between the plurality of connecting rods (13), a second reel (41) is installed at the top of the first reel (4), a plurality of tightening ropes (22) are installed on the inner side of the closing opening (21), a bottom ring (23) is installed on the side wall of the fishing net (2), the bottom ring (23) is located at the bottom of the fishing net (2), the second reel (41) reels the plurality of tightening ropes (22), a plurality of traction ropes (42) are reeled in the second reel (41), the plurality of traction ropes (42) traction the bottom ring (23), an axial flow water pump (5) and a vacuum air pump (6) are installed on both sides of the support platform (1), the axial flow water pump (5) regulates the water volume inside the double-chamber airbag float (11), the The vacuum air pump (6) regulates the air volume inside the double-cavity airbag float (11). The double-cavity airbag float (11) is provided with two upper and lower cavities. The double-cavity airbag float (11) is connected to the axial flow water pump (5) and the vacuum air pump (6) through the two cavities respectively. The support platform (1) is provided with a monitoring module (7). The monitoring module (7) includes a wind speed sensor (71), a wave sensor (72) and a PLC control module (73). The PLC control module (73) releases a wireless control signal to the first winder (4), the axial flow water pump (5) and the vacuum air pump (6). The PLC control module (73) controls the first winder (4), the axial flow water pump (5) and the vacuum air pump (6) to start.

2. A typhoon-resistant offshore net cage and fishing net lifting device according to claim 1, characterized in that: A spiral tightener (121) is installed on the side walls of a plurality of the traction steel wires (12), and the PLC control module (73) releases a wireless control signal to the spiral tightener (121), and the PLC control module (73) adjusts the length of the traction steel wire (12) through the spiral tightener (121).

3. The typhoon-resistant offshore net cage and fishing net lifting device according to claim 1, characterized in that: A plurality of sliders (24) are installed on the outside of the bottom ring (23), a plurality of slide grooves (31) are opened on the inside of the outer protective frame (3), a plurality of spherical rolling bodies (241) are arranged on the side wall of the slider (24), and the plurality of spherical rolling bodies (241) are slidably connected to the corresponding inner wall of the slide groove (31), and one end of the traction rope (42) is installed on the top of the corresponding slider (24).

4. The typhoon-resistant offshore net cage and fishing net lifting device according to claim 1, characterized in that: A suction and discharge pipe (51) is installed at the bottom of the axial flow water pump (5), and the bottom end of the suction and discharge pipe (51) faces the seawater.

5. The typhoon-resistant offshore net cage and fishing net lifting device according to claim 4, characterized in that: The top end of the vacuum air pump (6) is provided with an exhaust pipe (61), the exhaust pipe (61) is oriented in the opposite direction to the exhaust pipe (51), and a water blocking valve (62) is provided at the top end of the exhaust pipe (61).

6. A typhoon-resistant offshore net cage and fishing net lifting device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. During the fishing season, the second reel (41) is controlled to reel in a plurality of traction ropes (42), so that the traction ropes (42) can pull the slider (24) and the bottom ring (23) upward, and the bottom ring (23) drives the bottom of the fishing net (2) to complete the lifting, so that the fish inside the fishing net (2) can be lifted to a position close to the water surface, which is convenient for subsequent fishing work. After the fishing is completed, the second reel (41) is controlled to unwind the traction ropes (42), so that the bottom ring (23) can pull the fishing net (2) downward, and the bottom ring (23) and the fishing net (2) automatically return to their positions; S2. When typhoon weather occurs, the wind speed sensor (71) and the wave sensor (72) timely sense environmental factors and transmit the monitoring data to the PLC control module (73). The PLC control module (73) controls the first winder (4), the axial flow water pump (5) and the vacuum air pump (6) to start working, so that the first winder (4) can timely wind up the plurality of tightening ropes (22). The plurality of tightening ropes (22) reduce the opening of the closing mouth (21), thereby shielding the fish inside the fishing net (2) and reducing the loss caused by the fish escaping. At the same time, the axial flow water pump (5) and the vacuum air pump (6) respectively exhaust and inject water into the two cavities inside the double-chamber airbag float (11), so that the buoyancy of the double-chamber airbag float (11) decreases, and the device is immersed in the sea water, thereby reducing the impact of the typhoon. S3. After the typhoon ends, the PLC control module (73) controls the first winder (4), the axial flow water pump (5) and the vacuum air pump (6) again. The axial flow water pump (5) and the vacuum air pump (6) inflate and drain the two cavities inside the double-cavity air bag float (11). At this time, the buoyancy of the double-cavity air bag float (11) is increased, so that the net cage is lifted to the water surface, so that after avoiding the typhoon, the device can return to its original position in time to continue the breeding work.

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