Folding netting device of fixed type mariculture platform and using method of folding netting device

Abstract

The invention relates to the technical field of mariculture equipment, in particular to a folding netting device of a fixed mariculture platform and a using method thereof, the folding netting device comprises a plurality of steel pipe leg columns, and a mounting truss is arranged among the plurality of steel pipe leg columns; the top of the mounting truss is used for mounting a side netting, and the inner side wall of the mounting truss is used for mounting a bottom netting; a deck is fixed to the top of the steel pipe leg column, and the bottom of the deck is fixedly connected with the top of the side netting through a supporting net rope. The installation truss is driven by a lifting mechanism to ascend and descend, and the installation truss can drive the bottom netting to ascend and descend and drive the side netting to be folded in the ascending and descending process. The lifting mechanism comprises a winch fixed on the deck, and a lifting lug is fixed on the mounting truss. The problems that under the action of waves and ocean currents, the bottom of a net of a fixed type marine aquaculture platform deforms, the bottom of the net ascends, consequently, the aquaculture space is reduced, and the net is difficult to disassemble can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of marine aquaculture equipment, in particular to a folding net device of a fixed marine aquaculture platform and a use method thereof. Background Art

[0002] With the development of society, people's demand for seafood is growing. At the same time, the traditional offshore aquaculture space has become saturated and development is limited. Intensive offshore aquaculture has led to environmental deterioration, frequent diseases and other problems. In order to meet the demand and reduce the environmental pollution caused by aquaculture, our country attaches great importance to the development of marine aquaculture equipment.

[0003] Fixed marine aquaculture platform is a platform based on the pipe frame structure, integrating multiple equipment to realize intelligent aquaculture. It still uses nets to form the aquaculture space. At present, the side of the net is usually directly connected to the pipe frame structure, and the bottom of the net is connected to heavy objects with cables to keep it at a certain depth and resist deformation caused by waves and currents.

[0004] In bad weather, the impact of waves becomes greater and the speed of ocean currents becomes faster. This way of fixing the net will cause the weight connected to the bottom of the net to swing violently, causing the bottom of the net to deform with the swing of the weight. At the same time, the swing of the weight reduces the depth of the weight, and the depth of the bottom of the net following the swing also decreases. These two phenomena lead to the reduction of the aquaculture space. In addition, when the bottom of the net needs to be disassembled, such as cleaning, repairing, or replacing, it is necessary to rely on manual diving to remove the weight connected to the bottom of the net before the net can be lifted for related operations. Moreover, the net is composed of the bottom net and the side net, which are tied together to form a whole. It is very difficult to disassemble and it is easy to damage the net, which reduces the work efficiency of the aquaculture platform for related operations and increases the additional labor and equipment costs. Summary of the invention

[0005] The purpose of the present invention is to provide a folding net device for a fixed marine aquaculture platform and a method for using the same, which can solve the problems of deformation of the bottom of the net and the rise of the bottom of the net resulting in a reduction in aquaculture space, as well as difficulty in disassembling the net, which occur on the fixed marine aquaculture platform under the action of waves and currents.

[0006] The technical solution of the present invention:

[0007] A folding net device for a fixed marine aquaculture platform comprises a plurality of steel tube legs, wherein a mounting truss is arranged between the plurality of steel tube legs; the top of the mounting truss is used to mount the side net, and the inner side wall is used to mount the bottom net; a deck is fixed on the top of the steel tube legs, and the bottom of the deck is fixedly connected to the top of the side net via a supporting net; the mounting truss is driven to rise and fall by a lifting mechanism, and the mounting truss can simultaneously drive the bottom net to rise and fall, and drive the side net to fold during the lifting process;

[0008] The lifting mechanism comprises a winch fixed on the deck, a lifting lug is fixed on the mounting truss, and a steel rope of the winch penetrates the deck and is fixedly connected to the lifting lug.

[0009] Furthermore, the mounting truss comprises an outer frame connected by adjacent pairs of first circular tubes, and the outer frame has a plurality of staggered second circular tubes.

[0010] Furthermore, the number of the steel pipe leg columns is four and they are arranged in a rectangular form; the number of the first circular tubes is four, and adjacent pairs of the first circular tubes are connected via a third circular tube.

[0011] Furthermore, a first fixing rod for connecting with the side net is fixed to the top of the mounting truss, and a second fixing rod for connecting with the bottom net is fixed to the inner side wall of the mounting truss.

[0012] Furthermore, two supports are fixed on the third circular tube, a pulley is installed between the two supports, and a slide rail matching the pulley is fixed on the inner side surface of the steel tube leg column.

[0013] Furthermore, an electric push rod is provided on the support, and the body and pulley of the electric push rod are connected to the support via a rotating shaft; the push rod of the electric push rod is hinged to a limit rod, and the head end of the limit rod is hinged to the support; a plurality of limit teeth inclined downward are longitudinally fixed on the slide rail to block the limit rod.

[0014] Furthermore, the steel rope is connected to the longitudinal mesh of the side net through a plurality of slip rings.

[0015] A method for using a folding net device of a fixed marine aquaculture platform, the method is as follows:

[0016] Situation 1: When the depth of the net needs to be adjusted;

[0017] Step 11: The push rod of the electric push rod is extended, and the limit rod is lifted so that the limit rod is separated from the limit tooth;

[0018] Step 12: The winch retracts or releases the steel rope to raise or lower the installation truss, thereby driving the bottom of the net to rise or fall, and the winch is stopped after the installation truss reaches the predetermined depth;

[0019] Step 13: Shorten the electric push rod and lower the limit rod to complete the adjustment of the net depth;

[0020] Situation 2: When the net needs to be disassembled;

[0021] Step 21: The push rod of the electric push rod is extended, and the limit rod is lifted, so that the limit rod is separated from the limit tooth;

[0022] Step 22: The winch retracts the steel rope to raise the installation truss, thereby driving the bottom of the net to rise and folding the side net until the installation truss is lifted out of the water and the winch is stopped;

[0023] Step 23: The net can be disassembled by cutting the ropes used to tie the bottom net and the second fixing rod, and the ropes used to tie the side net and the first fixing rod.

[0024] Furthermore, in step 11 and step 21, in order to smoothly lift the limit rod, the installation truss is lowered a certain distance before the limit rod is lifted to prevent the limit rod from being stuck by the limit teeth when it is lifted.

[0025] Beneficial effects of the present invention:

[0026] (1) When facing severe weather conditions with greater impact from waves and currents, the present invention can reduce deformation of the net by using a truss to constrain the net, compared to conventional net restraint methods.

[0027] (2) The present invention uses the cooperation of the limiting rod and the limiting teeth to ensure that when the bottom of the net is maintained at a certain predetermined depth, it will not rise significantly under the impact of waves and currents, thereby ensuring that the volume of the breeding space will not change significantly.

[0028] (3) The present invention uses an installation truss as a frame for fixing the net, and the bottom of the bottom net and the bottom of the side net are tied to the second fixing rod and the first fixing rod respectively, which not only ensures the closedness of the breeding space, but also facilitates the separate disassembly of the net.

[0029] (4) When the net needs to be disassembled, the present invention can directly lift the bottom of the net out of the water through the lifting mechanism, which is convenient for the staff to operate and reduces the difficulty of related operations.

[0030] The present invention can solve the problems of net bottom deformation and net bottom rise caused by fixed ocean aquaculture platforms under the action of waves and currents, resulting in reduced aquaculture space and difficulty in disassembling the net. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is a top view schematic diagram of the present invention.

[0033] Figure 3 This is a front view schematic diagram of the installation truss.

[0034] Figure 4 It is a top view schematic diagram of the installation truss.

[0035] Figure 5 It is a structural diagram of the support.

[0036] Figure 6 It is a schematic diagram of the structure of the bottom mesh and the side mesh.

[0037] Figure 7 Schematic diagram of the structure of the first fixing rod and the second fixing rod.

[0038] Figure 8 It is a schematic diagram of the structure of the limiting rod and the limiting teeth.

[0039] Fig. 9 It is a comparative diagram of lowering and raising the limit rod.

[0040] Fig.10 It is a structural diagram of the lifting mechanism.

[0041] Fig.11 It is a structural diagram of the guide rail.

[0042] Fig.12 It is a front view schematic diagram of the present invention.

[0043] In the figure: steel tube leg column 11, mounting truss 21, side net 14, bottom net 13, deck 12, supporting net 15, lifting mechanism 3, winch 31, lifting eye 24, steel rope 32, first round tube 211, second round tube 212, first fixing rod 23, second fixing rod 22, short rod 26, third round tube 213, support 25, pulley 42, slide rail 41, electric push rod 45, rotating shaft 46, limit rod 44, limit tooth 43, slip ring 33. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] like Figures 1 to 12As shown, the present invention provides a first embodiment of a folding net device for a fixed marine aquaculture platform, comprising a plurality of steel tube legs 11, the bottom of which is inserted into the seabed and the upper part extends out of the sea level, and a mounting truss 21 is arranged between the plurality of steel tube legs 11; the top of the mounting truss 21 is used to mount the side net 14, and the inner wall is used to mount the bottom net 13, so that the side and bottom of the net are separated, which is conducive to improving efficiency and reducing damage to the net when disassembling the net. A deck 12 is fixed on the top of the steel tube legs 11, and the bottom of the deck 12 is fixedly connected to the top of the side net 14 through a supporting net 15, which can support the net, and enable the net to use the mounting truss 21 as a rigid structure to strengthen the bottom of the net, so that it will not be significantly deformed when facing the impact of waves and currents, thereby improving the anti-wave and anti-current performance of the bottom of the net.

[0046] The installation truss 21 is driven to rise and fall by a lifting mechanism 3. The installation truss 21 can simultaneously drive the bottom net 13 to rise and fall, and drive the side net 14 to fold during the lifting process; the upper part of the side net 14 extends out of the sea level, and the installation truss 21 is driven to rise by the lifting mechanism 3, thereby driving the bottom net 13 to rise, thereby driving the lower part of the side net 14 to fold upward and out of the water surface, which is convenient for the staff to operate and reduces the difficulty of related operations. The lifting mechanism 3 includes a winch 31 fixed on the deck 12, and the installation truss 21 is fixed with a lifting lug 24. The steel rope 32 of the winch 31 penetrates the deck 12 and is fixedly connected to the lifting lug 24. The deck 12 has a through hole for the steel rope 32 to pass through. The winch 31 drives the steel rope 32 to move upward, thereby driving the installation truss 21 to move upward, thereby driving the bottom net 13 to move upward, and then driving the side net 14 to fold.

[0047] The mounting truss 21 comprises an outer frame connected by two adjacent first round tubes 211, and a plurality of staggered second round tubes 212 are arranged inside the outer frame. The mounting truss 21 is a steel structure, which is manufactured by welding. The steel structure can ensure that the mounting truss 21 has sufficient strength and rigidity, and will not be deformed or damaged under the impact of waves and currents. At the same time, the mounting truss 21 can have a certain mass, so that it can sink naturally in the water.

[0048] The top of the mounting truss 21 is fixed with a first fixing rod 23 for connecting with the side net 14, and the inner side wall of the mounting truss 21 is fixed with a second fixing rod 22 for connecting with the bottom net 13. Both are connected to the mounting truss 21 through a plurality of short rods 26. The side net 14 is connected to the first fixing rod 23 by bundling, and the bottom net 13 is also connected to the second fixing rod 22 by bundling, which can be easily disassembled. The gap between the first fixing rod 23, the second fixing rod 22 and the mounting truss 21 needs to be smaller than the volume of the fish to prevent the fish from escaping from the gap.

[0049] Based on the previous embodiment, the present invention provides a second embodiment, wherein the number of the steel pipe leg columns 11 is four and they are arranged in a rectangular form; the number of the first circular tubes 211 is four and adjacent pairs of the first circular tubes 211 are connected via a third circular tube 213 .

[0050] Two supports 25 are fixed on the third circular tube 213, a pulley 42 is installed between the two supports 25, and a slide rail 41 matched with the pulley 42 is fixed on the inner side of the steel tube leg column 11. The pulley 42 cooperates with the slide rail 41 to play a limiting and guiding role when the truss 21 is installed and lifted.

[0051] Based on the previous embodiment, the present invention provides a third embodiment, wherein an electric push rod 45 is arranged on the support 25, and the electric push rod 45 adopts a waterproof electric push rod 45. The body of the electric push rod 45 and the pulley 42 are connected to the support 25 via a rotating shaft 46; the push rod of the electric push rod 45 is hinged to a limit rod 44, and the head end of the limit rod 44 is hinged to the support 25; a plurality of limit teeth 43 inclined downward are longitudinally fixed on the slide rail 41 for blocking the limit rod 44.

[0052] The electric push rod 45 drives the lifting and lowering of the limit rod 44 through its extension and retraction; when the limit rod 44 is lifted, the limit rod 44 will not interfere with the limit tooth 43, and the installation truss 21 can be raised and lowered; when the limit rod 44 is lowered, if the installation truss 21 rises or falls, the limit rod 44 will contact and collide with the limit tooth 43, thereby limiting the displacement of the installation truss 21 in the vertical direction.

[0053] Under normal working conditions, the installation truss 21 is suspended by the steel rope 32 and maintained at a fixed depth. However, due to the impact of waves and currents in the marine environment, the installation truss 21 may be driven by the impact of waves and currents, causing it to move vertically upward, thereby folding the side net 14 and significantly reducing the breeding space. The cooperation of the limit teeth 43 and the limit rod 44 is to prevent the installation truss 21 from moving upward under the action of waves and currents, thereby ensuring the stability of the breeding space.

[0054] In this embodiment, when the depth of the net needs to be adjusted, first, the electric push rod 45 is extended to lift the limit rod 44, then the winch 31 retracts or releases the steel rope 32 to lift the installation truss 21, thereby driving the bottom of the net to lift and lower until the installation truss 21 reaches the predetermined depth and the winch 31 is stopped; finally, the electric push rod 45 is shortened to lower the limit rod 44 to complete the adjustment of the depth of the net. In order to smoothly lift the limit rod 44, the installation truss 21 can be lowered for a distance before lifting to prevent the limit rod 44 from being stuck by the limit tooth 43 when it is lifted.

[0055] When in normal breeding state, the lifting mechanism 3 hangs the installation truss 21, so that the installation truss 21 remains motionless at a certain depth. At the same time, the limit rod 44 remains in the lowered state, so that the limit rod 44 is restricted by the limit tooth 43, so that the installation truss 21 is restricted to avoid the swing and upward movement of the bottom of the net due to the occasional large impact of waves and currents.

[0056] When facing bad weather, the impact of waves becomes greater and the speed of ocean currents becomes faster, so the net can be lowered to the deepest part. Subsequently, the electric push rod 45 is shortened and the limit rod 44 is lowered. At this time, even if the bottom of the net is displaced upward under the action of waves and ocean currents, it can only move within a small range due to the obstruction of the limit teeth 43, and will not cause a significant reduction in the breeding space. At the same time, the cooperation of the pulley 42 and the slide rail 41 can limit the horizontal movement of the bottom of the net, reduce the swing of the bottom of the net, and further ensure the stability of the breeding space.

[0057] In the above two cases, the bottom of the net is tightened and fixed on the rigid structure of the mounting truss 21, and the bottom of the net will not be obviously deformed to affect the size of the breeding space.

[0058] When the net needs to be disassembled, the bottom of the net can be directly lifted out of the water for operation. At the same time, the bottom net 13 and the side net 14 are tied at different positions respectively, and the two nets can be disassembled separately by cutting the tying ropes at the corresponding positions.

[0059] Based on any of the above embodiments, the present invention provides a fourth embodiment, wherein the steel rope 32 is connected to the longitudinal mesh of the side net 14 via a plurality of slip rings 33, a slip ring 33 is sleeved between each of the transverse meshes of the side net 14, the slip ring 33 is supported by the top of the transverse mesh, the steel rope 32 will be naturally tensioned under the action of gravity exerted on the installation truss 21, and since the steel rope 32 is tensioned, the side net 14 will not have a large deformation in the water, and in the process of the installation truss 21 moving upward, the side net 14 can be folded along the steel rope 32 to prevent the side net 14 from tilting during the folding process.

[0060] Based on any of the above embodiments, the present invention provides a method for using a folding net device of a fixed marine aquaculture platform, the method is as follows:

[0061] Situation 1: When the depth of the net needs to be adjusted;

[0062] Step 11: The push rod of the electric push rod is extended, and the limit rod is lifted so that the limit rod is separated from the limit tooth;

[0063] Step 12: The winch retracts or releases the steel rope to raise or lower the installation truss, thereby driving the bottom of the net to rise or fall, and the winch is stopped after the installation truss reaches the predetermined depth;

[0064] Step 13: Shorten the electric push rod and lower the limit rod to complete the adjustment of the net depth.

[0065] Situation 2: When the net needs to be disassembled;

[0066] Step 21: The push rod of the electric push rod is extended, and the limit rod is lifted, so that the limit rod is separated from the limit tooth;

[0067] Step 22: The winch retracts the steel rope to raise the installation truss, thereby driving the bottom of the net to rise and folding the side net until the installation truss is lifted out of the water and the winch is stopped;

[0068] Step 23: The net can be disassembled by cutting the ropes used to tie the bottom net and the second fixing rod, and the ropes used to tie the side net and the first fixing rod.

[0069] In step 11 and step 21, in order to smoothly lift the limit rod, the mounting truss may be lowered a certain distance before the limit rod is lifted to prevent the limit rod from being stuck by the limit teeth when it is lifted.

[0070] The above description is only a preferred embodiment of the present invention and should not be construed as limiting the present application. All equivalent changes and modifications made within the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A folding net device for a fixed marine aquaculture platform, characterized in that: It comprises a plurality of steel tube legs, and a mounting truss is arranged between the plurality of steel tube legs; the top of the mounting truss is used to mount the side net, and the inner side wall is used to mount the bottom net; a deck is fixed on the top of the steel tube legs, and the bottom of the deck is fixedly connected to the top of the side net via a supporting net; the mounting truss is driven to rise and fall by a lifting mechanism, and the mounting truss can simultaneously drive the bottom net to rise and fall, and drive the side net to fold during the lifting process; The lifting mechanism comprises a winch fixed on the deck, a lifting lug is fixed on the mounting truss, and a steel rope of the winch penetrates the deck and is fixedly connected to the lifting lug.

2. A folding net device for a fixed marine aquaculture platform according to claim 1, characterized in that: The mounting truss comprises an outer frame connected by adjacent first round tubes in pairs, and a plurality of staggered second round tubes are arranged inside the outer frame.

3. The folding net device of a fixed marine aquaculture platform according to claim 2, characterized in that: The number of the steel pipe legs is four and they are arranged in a rectangular form; the number of the first circular tubes is four and adjacent first circular tubes are connected in pairs via a third circular tube.

4. The folding net device of a fixed marine aquaculture platform according to claim 1, characterized in that: A first fixing rod for connecting with the side net is fixed on the top of the installation truss, and a second fixing rod for connecting with the bottom net is fixed on the inner side wall of the installation truss.

5. The folding net device of a fixed marine aquaculture platform according to claim 3, characterized in that: Two supports are fixed on the third circular tube, a pulley is installed between the two supports, and a slide rail matched with the pulley is fixed on the inner side surface of the steel tube leg column.

6. The folding net device of a fixed marine aquaculture platform according to claim 5, characterized in that: An electric push rod is arranged on the support, and the body and pulley of the electric push rod are connected to the support via a rotating shaft; the push rod of the electric push rod is hinged to a limit rod, and the head end of the limit rod is hinged to the support; a plurality of limit teeth inclined downward are longitudinally fixed on the slide rail for blocking the limit rod.

7. The folding net device of a fixed marine aquaculture platform according to claim 1, characterized in that: The steel rope is connected to the longitudinal mesh of the side net through a plurality of slip rings.

8. A method for using a folding net device of a fixed marine aquaculture platform, characterized in that: Here’s how: Situation 1: When the depth of the net needs to be adjusted; Step 11: The push rod of the electric push rod is extended, and the limit rod is lifted so that the limit rod is separated from the limit tooth; Step 12: The winch retracts or releases the steel rope to raise or lower the installation truss, thereby driving the bottom of the net to rise or fall, and the winch is stopped after the installation truss reaches the predetermined depth; Step 13: Shorten the electric push rod and lower the limit rod to complete the adjustment of the net depth; Situation 2: When the net needs to be disassembled; Step 21: The push rod of the electric push rod is extended, and the limit rod is lifted, so that the limit rod is separated from the limit tooth; Step 22: The winch retracts the steel rope to raise the installation truss, thereby driving the bottom of the net to rise and folding the side net until the installation truss is lifted out of the water and the winch is stopped; Step 23: The net can be disassembled by cutting the ropes used to tie the bottom net and the second fixing rod, and the ropes used to tie the side net and the first fixing rod.

9. The method for using the folding net device of a fixed marine aquaculture platform according to claim 8, characterized in that: In step 11 and step 21, in order to smoothly lift the limit rod, the installation truss is lowered a certain distance before the limit rod is lifted to prevent the limit rod from being stuck by the limit teeth when it is lifted.

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