A marine traction lifting aquaculture net

Abstract

The present invention relates to the technical field of marine aquaculture, and discloses an offshore traction lifting aquaculture net. The aquaculture net includes a net component, a guide wheel, a first towing cable, a second towing cable, a first pulley, a second pulley, a third towing cable, a support frame, a first fish blocking part and a second fish blocking part. The net component is rotatably connected to the bottom of the outer circumference of the guide wheel. The two ends of the net component are respectively connected to the first towing cable and the second towing cable. The first towing cable is lapped on the first pulley, and the second towing cable is lapped on the second pulley. The third towing cable is installed on the support frame around the outer circumference of the net component. The first fish blocking part is installed at the bottom of the net component, and the second fish blocking part is installed on the third towing cable. The third towing cable passes through the first fish blocking part. The beneficial effects of the present invention are as follows: Instead of lifting the entire net cage, only the net is lifted for maintenance. The energy consumption for net maintenance is small, the maintenance time is short, the operation is simple, and the fish will not be lost during the maintenance process, thus improving the economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture, and particularly to an offshore traction lifting aquaculture netting Background Art

[0002] The netting of offshore truss - type or semi - submersible aquaculture cages is very prone to growing marine organisms, resulting in netting blockage, increased stress on the netting, and even damage. Therefore, it needs to be cleaned and maintained in a timely manner. Existing offshore truss - type or semi - submersible aquaculture cages include a structural framework composed of multiple columns and floating bodies and an aquaculture space. Strip - like facilities are arranged on the outer side of these structures, and the netting is tied to these strip - like facilities to form an enclosed area with closed surroundings and bottom for fish farming. During normal aquaculture, the netting dives into the water to an appropriate depth along with the whole cage. When cleaning and maintenance are required, the whole cage is made to float to the water surface by controlling the ballast water system of the cage for netting cleaning and maintenance. However, the existing technology has high energy consumption, long time consumption, and complex operation for netting maintenance. Therefore, there is an urgent need for a new offshore traction lifting aquaculture netting to solve the above problems. Summary of the Invention

[0003] The purpose of the present application is to provide an offshore traction lifting aquaculture netting, which can lift or dive only the netting into the water without affecting aquaculture, thus facilitating the maintenance of the netting.

[0004] The purpose of the present application is achieved through the following technical solutions:

[0005] An offshore traction lifting aquaculture netting includes: a netting assembly, a guide wheel, a first towing cable, a second towing cable, a first pulley, a second pulley, a third towing cable, a support frame, a first fish - blocking part, and a second fish - blocking part. The netting assembly is rotatably connected to the outer bottom of the guide wheel to form a "U" - shaped structure. One end of the netting assembly is connected to the first towing cable, and the first towing cable is lapped on the first pulley for pulling up the netting assembly from one side. The other end of the netting assembly is connected to the second towing cable, and the second towing cable is lapped on the second pulley for pulling up the netting assembly from the other side;

[0006] The third towing cable is arranged in a "U" shape around the outer periphery of the netting assembly and installed on the support frame. The first fish - blocking part is installed at the bottom of the netting assembly, and the second fish - blocking part is installed on the third towing cable. The third towing cable passes through the first fish - blocking part for pulling the second fish - blocking part to replace the position of the first fish - blocking part.

[0007] In some embodiments of the present application, the netting assembly includes a netting body and a guiding and clamping mechanism. The guiding and clamping mechanism is disposed at the side edge position of the netting body. The guiding and clamping mechanism has a pin shaft and a clamping pair. The clamping pair can rotate around the pin shaft, and the netting body is disposed in the clamping pair.

[0008] In some embodiments of the present application, the netting assembly further includes a guiding ball. The guiding ball is installed at the side edge of the netting body. Both the first towing cable and the second towing cable are connected to the guiding ball. The guiding ball and the netting body are both disposed in the clamping pair.

[0009] In some embodiments of the present application, the netting assembly further includes a protective net plate. The protective net plate is installed on the guiding ball and is disposed between the clamping pair and the netting body.

[0010] In some embodiments of the present application, it further includes a first indicating device. The first indicating device is installed on the first towing cable or the second towing cable and is used to judge the position of the netting assembly underwater by reading the position of the first indicating device.

[0011] In some embodiments of the present application, it further includes a third fish-blocking part. The third fish-blocking part is installed below the first fish-blocking part and is connected to the first fish-blocking part.

[0012] In some embodiments of the present application, it further includes a second indicating device. The second indicating device is installed on the third towing cable and is used to judge the position of the second fish-blocking part by reading the position of the second indicating device.

[0013] In some embodiments of the present application, it further includes a pulley bracket. The pulley bracket is of a "T" shape structure, and the first pulley and the second pulley are respectively installed on both sides of the top of the pulley bracket.

[0014] In some embodiments of the present application, it further includes a towing winch. The towing winch is connected to the first towing cable or the second towing cable and is used to pull up the first towing cable or the second towing cable.

[0015] In some embodiments of the present application, it further includes a fish repelling brush. The fish repelling brush is installed at the top opening of the netting assembly.

[0016] For the offshore traction and lifting aquaculture netting of the present application, the guide wheels cooperate with the first traction cable and the second traction cable to straighten the netting assembly, forming a "U" - shaped structure to constitute the aquaculture space. The first pulley and the second pulley are used to deflect the first traction cable and the second traction cable, facilitating the operation by the personnel on the deck. The third traction cable is installed on the support frame, and the support frame confines the third traction cable to be arranged around the outer periphery of the netting assembly. Since the first fish - blocking part is arranged at the bottom of the netting assembly and the second fish - blocking part is arranged on the third traction cable, as the third traction cable is pulled, the second fish - blocking part can stay at different positions on the path of the third traction cable. When the second fish - blocking part reaches the position of the first fish - blocking part, it can replace the function of the first fish - blocking part. During the maintenance of the netting assembly, by pulling the first traction cable, the netting assembly on the same side of the first traction cable can be maintained and cleaned. However, at this time, the first fish - blocking part will also move with the netting assembly and deviate from its original position, which may cause the cultured fish to escape. At this time, the third traction cable can be used to pull the second fish - blocking part to the original position of the first fish - blocking part, thus avoiding the loss of cultured fish during the maintenance of the netting assembly. Similarly, by pulling the second traction cable, the netting assembly on the same side of the second traction cable can be maintained and cleaned. Thus, only the netting is lifted or submerged into the water, rather than the entire aquaculture platform being lifted or submerged into the water, solving the problem of continuously turning on a large - capacity ballast water pump and consuming a large amount of energy, and simultaneously solving the problem of requiring a long time for operation and being difficult to adapt to the complex marine climate environment at sea. At the same time, it avoids the problem of complex overall net cage lifting operation, where it is necessary to take a small boat on the water outside the platform or workers wear floating bodies for operation. Workers only need to operate on the deck surface, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the netting lifting of the present application;

[0018] Figure 2 is a side view of the netting of the present application when it is in a state to be cleaned;

[0019] Figure 3 is a side view of the present application when the first fish - blocking part and the second fish - blocking part are in a switching state;

[0020] Figure 4 is a side view of one - side netting of the present application when it is in a cleaning state;

[0021] Figure 5 is a side view of the other - side netting of the present application when it is in a cleaning state;

[0022] Figure 6 is a side view of the netting of the present application when it is in a normal aquaculture state;

[0023] Figure 7 is a front view of the netting of the present application;

[0024] Figure 8 It is a top view of the fishnet of the present application.

[0025] In the figure, 1 is the fishnet assembly; 101 is the fishnet body; 102 is the guiding and clamping mechanism; 1021 is the pin shaft; 1022 is the clamping pair; 103 is the guiding ball; 104 is the protective net plate; 2 is the guiding wheel; 3 is the first towing cable; 4 is the second towing cable; 5 is the first pulley; 6 is the second pulley; 7 is the third towing cable; 8 is the support frame; 9 is the first fish blocking part; 10 is the second fish blocking part; 11 is the first indicating device; 12 is the third fish blocking part; 13 is the second indicating device; 14 is the pulley bracket; 15 is the fish repelling brush. Specific embodiments

[0026] The following will further describe in detail the specific embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. used in the present application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the present invention, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Such as Figure 1-6As shown in the figure, an embodiment of the present application provides an offshore traction and lifting aquaculture net, including: a net component 1, a guide wheel 2, a first traction cable 3, a second traction cable 4, a first pulley 5, a second pulley 6, a third traction cable 7, a support frame 8, a first fish barrier 9 and a second fish barrier 10. The net component 1 is rotatably connected to the outer bottom of the guide wheel 2 to form a "U" - shaped structure. One end of the net component 1 is connected to the first traction cable 3, and the first traction cable 3 is lapped on the first pulley 5 for pulling up the net component 1 from one side. The other end of the net component 1 is connected to the second traction cable 4, and the second traction cable 4 is lapped on the second pulley 6 for pulling up the net component 1 from the other side. The third traction cable 7 is arranged in a "U" - shape around the outer circumference of the net component 1 and installed on the support frame 8. The first fish barrier 9 is installed at the bottom of the net component 1, and the second fish barrier 10 is installed on the third traction cable 7. The third traction cable 7 passes through the first fish barrier 9 for pulling the second fish barrier 10 to replace the position of the first fish barrier 9.

[0030] Based on the above technical solution, for the marine traction lifting aquaculture netting of the present application, the guide wheel 2 cooperates with the first towing cable 3 and the second towing cable 4 to straighten the netting assembly 1, forming a "U" - shaped structure to constitute the aquaculture space. The first pulley 5 and the second pulley 6 are used to deflect the first towing cable 3 and the second towing cable 4, facilitating the operation of the personnel on the deck. The third towing cable 7 is installed on the support frame 8, and the support frame 8 confines the third towing cable 7 to be arranged around the outer periphery of the netting assembly 1. Since the first fish - blocking part 9 is provided at the bottom of the netting assembly 1 and the second fish - blocking part 10 is provided on the third towing cable 7, as the third towing cable 7 is pulled, the second fish - blocking part 10 can stay at different positions on the path of the third towing cable 7. When the second fish - blocking part 10 reaches the position of the first fish - blocking part 9, it can replace the function of the first fish - blocking part 9. During the maintenance of the netting assembly 1, by pulling the first towing cable 3, the netting assembly 1 on the same side of the first towing cable 3 can be maintained and cleaned. However, at this time, the first fish - blocking part 9 will also move with the netting assembly 1 and deviate from its original position, which may cause the cultured fish to escape. At this time, the third towing cable 7 can be used to pull the second fish - blocking part 10 to the original position of the first fish - blocking part 9, thus avoiding the loss of cultured fish during the maintenance of the netting assembly 1. Similarly, by pulling the second towing cable 4, the netting assembly 1 on the same side of the second towing cable 4 can be maintained and cleaned. Thus, only the netting is lifted or submerged in water, rather than the entire aquaculture platform being lifted or submerged in water, solving the problem of continuously turning on a large - capacity ballast water pump, consuming a large amount of energy, and synchronously solving the problem of requiring a long time for operation and being difficult to adapt to the complex marine climate environment at sea. At the same time, it avoids the problem of complex overall net cage lifting operation, where small boats need to be used on the water outside the platform or workers need to wear floating bodies for operation. Workers only need to operate on the deck surface, which is safer. Further, since the cleaning and maintenance of the netting assembly 1 are completely on the deck, an automated and intelligent system can be conveniently set up for netting maintenance, improving the degree of automation and reducing labor costs.

[0031] In some embodiments of the present application, such as Figure 8As shown, the netting component 1 includes a netting body 101 and a guiding and clamping mechanism 102. The guiding and clamping mechanism 102 is arranged at the side edge position of the netting body 101. The guiding and clamping mechanism 102 has a pin shaft 1021 and a clamping pair 1022. The clamping pair 1022 can rotate around the pin shaft 1021, and the netting body 101 is arranged in the clamping pair 1022. The guiding and clamping mechanism 102 functions to guide the netting body 101 to move in a predetermined direction. At the same time, it can loosen or clamp the netting body 101, so that the netting body 101 can move or be fixed at a certain position. The loosening and clamping of the guiding and clamping mechanism 102 are achieved by the rotation of the two clamping pairs 1022 around the pin shaft 1021. The contact surface between the two clamping pairs 1022 is as simple as possible to ensure convenient maintenance.

[0032] Specifically, as Figure 7 , 8 shown, the netting component 1 further includes a guiding ball 103. The guiding ball 103 is installed at the side edge of the netting body 101. Both the first towing cable 3 and the second towing cable 4 are connected to the guiding ball 103. The guiding ball 103 and the netting body 101 are both arranged in the clamping pair 1022. The guiding ball 103 can ensure that the edge of the netting body 101 can move in a limited space and can also achieve the purpose of unfolding the netting body 101. Among them, the guiding and clamping mechanism 102 needs to cooperate with the guiding ball 103. The guiding and clamping mechanism 102 is arranged around the guiding ball 103 to limit the movement trajectory of the guiding ball 103. After the clamping pair 1022 is clamped, the inner cavity size matches the diameter of the guiding ball 103 to ensure the smooth movement of the guiding ball 103 and the tightness of the netting body 101.

[0033] More specifically, as Figure 8 shown, the netting component 1 further includes a protective net plate 104. The protective net plate 104 is installed on the guiding ball 103 and is placed between the clamping pair 1022 and the netting body 101. The protective net plate 104 is preferably made of a flexible material and has a certain thickness. It is arranged between the clamping pair 1022 and the netting body 101. One is to prevent the netting body 101 from being worn by submarine structures or attached organisms during the lifting and lowering process, and the other is to block the escape of fish after clamping.

[0034] In some embodiments of the present application, as Figure 2-7As shown, it further includes a first indicating device 11. The first indicating device 11 is installed on the first towing cable 3 or the second towing cable 4 and is used to judge the position of the netting assembly 1 underwater by reading the position of the first indicating device 11. Since the netting assembly 1 is underwater in the normal aquaculture state, it is difficult for the workers on the deck to directly see whether the maintained netting assembly 1 has been towed to the designated position underwater. Therefore, the first indicating device 11 can be set. After the maintenance of the netting assembly 1 is completed, the position of the netting assembly 1 underwater can be judged by observing the position of the first indicating device 11 above the water surface.

[0035] In some embodiments of the present application, as Figure 2-6 shown, it further includes a third fish barrier 12. The third fish barrier 12 is installed below the first fish barrier 9 and is connected to the first fish barrier 9. The third fish barrier 12 can cooperate with the first fish barrier 9 or the second fish barrier 10 to realize the enclosure of the aquaculture space. In the actual working process, the first fish barrier 9 is preferably an ordinary fish brush, the second fish barrier 10 is preferably a strip brush, which can be simply and conveniently installed on the third towing cable 7, and the third fish barrier 12 is preferably a fish barrier plate, which cooperates with the fish brush to prevent fish from escaping during normal aquaculture, and can also prevent fish from escaping when cooperating with the strip brush during the maintenance of the netting assembly 1.

[0036] In some embodiments of the present application, as Figure 3-5 shown, it further includes a second indicating device 13. The second indicating device 13 is installed on the third towing cable 7 and is used to judge the position of the second fish barrier 10 by reading the position of the second indicating device 13. Since the working position of the second fish barrier 10 is underwater, in order to ensure that the second fish barrier 10 can accurately reach the designated position, the second indicating device 13 needs to be set on the third towing cable 7. The workers on the deck judge the position of the second fish barrier 10 according to the position of the second indicating device 13 to ensure the fish blocking effect.

[0037] In some embodiments of the present application, as Figure 2-6 shown, it further includes a pulley bracket 14. The pulley bracket 14 is of a "T" - shaped structure, and the first pulley 5 and the second pulley 6 are respectively installed on both sides of the top of the pulley bracket 14. The pulley bracket 14 can be used as the installation and support structure for the first pulley 5 and the second pulley 6. And in order to simplify the structure of the pulley bracket 14, it only needs to be set as a "T" - shaped structure, and the two pulleys are respectively installed on it, without the need to set two brackets, so the structure is simpler and the installation is more convenient.

[0038] In some embodiments of the present application, a towing winch is further included. The towing winch is connected to the first towing cable 3 or the second towing cable 4 and is used to pull up the first towing cable 3 or the second towing cable 4. The towing winch can pull up the first towing cable 3 or the second towing cable 4, thereby realizing the lifting of the netting assembly 1. Further, the third towing cable 7 can also be pulled by the towing winch to change the position of the second fish blocking part 10.

[0039] In some embodiments of the present application, as Figure 2-6 shown, a fish repelling brush 15 is further included. The fish repelling brush 15 is installed at the top opening of the netting assembly 1. The fish repelling brush 15 is mainly used to drive away the fish that may enter between the two layers of netting. Before the netting assembly 1 is lifted and lowered and cleaned and maintained, it should be ensured that the fish repelling brush 15 is clean to avoid scratching the netting assembly 1.

[0040] In summary, for the marine towing and lifting type aquaculture netting of the present application, the guide pulley 2 cooperates with the first towing cable 3 and the second towing cable 4 to straighten the netting assembly 1 to form a "U" - shaped structure to constitute an aquaculture space. The first pulley 5 and the second pulley 6 are used to turn the first towing cable 3 and the second towing cable 4, facilitating the operation of the personnel on the deck. The third towing cable 7 is installed on the support frame 8, and the support frame 8 confines the third towing cable 7 to a structure arranged around the outer periphery of the netting assembly 1. Since the first fish blocking part 9 is arranged at the bottom of the netting assembly 1 and the second fish blocking part 10 is arranged on the third towing cable 7, as the third towing cable 7 is pulled, the second fish blocking part 10 can stay at different positions on the path of the third towing cable 7. When the second fish blocking part 10 comes to the position of the first fish blocking part 9, it can replace the function of the first fish blocking part 9. When the netting assembly 1 is maintained, by pulling the first towing cable 3, the netting assembly 1 on the same side of the first towing cable 3 can be maintained and cleaned. However, at this time, the first fish blocking part 9 will also move with the netting assembly 1 and move away from its original position, which will cause the cultured fish to escape. At this time, the third towing cable 7 can be used to pull the second fish blocking part 10 to the original position of the first fish blocking part 9, thus avoiding the loss of cultured fish during the maintenance of the netting assembly 1. Similarly, by pulling the second towing cable 4, the netting assembly 1 on the same side of the second towing cable 4 can be maintained and cleaned. Thus, only the netting is lifted or submerged into the water, rather than the entire aquaculture platform being lifted or submerged into the water, solving the problem of continuously turning on a large - capacity ballast water pump and consuming a large amount of energy, and simultaneously solving the problem of requiring a long time for operation and being difficult to adapt to the complex marine climate environment at sea. At the same time, it avoids the problem of complex overall net cage lifting operation, where it is necessary to take a small boat on the water outside the platform or workers wear floating bodies for operation. Workers only need to operate on the deck surface, which is safer.

[0041] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present application, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. An offshore traction lifting aquaculture net, characterized in that, Comprising: A netting component, a guide wheel, a first towing cable, a second towing cable, a first pulley, a second pulley, a third towing cable, a support frame, a first fish barrier portion, and a second fish barrier portion. The netting component is rotatably connected to the outer peripheral bottom of the guide wheel to form a "U" - shaped structure. One end of the netting component is connected to the first towing cable, and the first towing cable is lapped on the first pulley for pulling up the netting component from one side. The other end of the netting component is connected to the second towing cable, and the second towing cable is lapped on the second pulley for pulling up the netting component from the other side. The third towing cable is arranged in a "U" - shape around the outer periphery of the netting component and is installed on the support frame. The first fish barrier portion is installed at the bottom of the netting component, and the second fish barrier portion is installed on the third towing cable. The third towing cable passes through the first fish barrier portion for pulling the second fish barrier portion to replace the position of the first fish barrier portion.

2. The offshore traction lifting aquaculture net according to claim 1, wherein, The netting component includes a netting body and a guiding and clamping mechanism. The guiding and clamping mechanism is arranged at the side edge position of the netting body. The guiding and clamping mechanism has a pin shaft and a clamping pair, and the clamping pair can rotate around the pin shaft. The netting body is arranged in the clamping pair.

3. The offshore traction and lifting type aquaculture netting according to claim 2, characterized in that, The netting component further includes a guiding ball. The guiding ball is installed at the side edge of the netting body. Both the first towing cable and the second towing cable are connected to the guiding ball. The guiding ball and the netting body are both arranged in the clamping pair.

4. The offshore traction and lifting type aquaculture netting according to claim 3, wherein, The netting component further includes a protective net plate. The protective net plate is installed on the guiding ball and is placed between the clamping pair and the netting body.

5. The offshore traction and lifting type aquaculture netting according to claim 1, wherein, It further includes a first indicating device. The first indicating device is installed on the first towing cable or the second towing cable for judging the position of the netting component underwater by reading the position of the first indicating device.

6. The offshore traction and lifting type aquaculture netting according to claim 1, wherein, It further includes a third fish barrier portion. The third fish barrier portion is installed below the first fish barrier portion and is connected to the first fish barrier portion.

7. The offshore traction and lifting type aquaculture netting according to claim 1, characterized in that, It further includes a second indicating device. The second indicating device is installed on the third towing cable for judging the position of the second fish barrier portion by reading the position of the second indicating device.

8. The offshore traction and lifting type aquaculture netting according to claim 1, characterized in that, It further includes a pulley support. The pulley support is in a "T" - shaped structure, and the first pulley and the second pulley are respectively installed on both sides of the top of the pulley support.

9. The offshore traction and lifting aquaculture net according to claim 1, characterized in that, It further includes a towing winch. The towing winch is connected to the first towing cable or the second towing cable for pulling up the first towing cable or the second towing cable.

10. The offshore traction and lifting type aquaculture netting according to claim 1, characterized in that, It further includes a fish - driving brush. The fish - driving brush is installed at the top opening of the netting component.

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