A folding netting device for a fixed marine farming platform and a method of using the same

Abstract

The present application relates to the technical field of marine culture equipment, and particularly relates to a folding net device of a fixed marine culture platform and a use method thereof, which comprises a plurality of steel pipe leg columns, and a mounting truss is arranged between the plurality of steel pipe leg columns; a top of the mounting truss is used for mounting a side net, and an inner side wall is used for mounting a bottom net; a deck is fixed to a top of the steel pipe leg column, and a bottom of the deck is fixedly connected to a top of the side net through a support net beam; the mounting truss is driven to lift and fall by a lifting mechanism, and the mounting truss can drive the bottom net to lift and fall and drive the side net to fold simultaneously during the lifting and falling process; the lifting mechanism comprises a winch fixed to the deck, and a lifting lug is fixed to the mounting truss. The present application can solve the problems of deformation of the bottom of the net, reduction of culture space caused by the rising of the bottom of the net, and difficulty in dismounting the net of the fixed marine culture platform under the action of waves and sea currents.

Description

TECHNICAL FIELD

[0001] The present application 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

[0002] The fixed marine aquaculture platform is based on a jacket structure, integrates multiple devices to realize intelligent aquaculture, and is still composed of a net to form an aquaculture space. At present, the side of the net is usually directly connected to the jacket structure, and the bottom of the net is connected to a weight by a cable to keep it at a certain depth and resist deformation caused by waves and currents.

[0003] In severe weather, the impact of waves increases, and the flow rate of currents increases. The fixing method of this net can cause the weight connected to the bottom of the net to swing violently, causing the bottom of the net to deform with the swinging of the weight. At the same time, the swinging of the weight makes the depth of the weight smaller, and the depth of the bottom of the net following the swinging also becomes smaller. These two phenomena cause the aquaculture space to shrink. In addition, when the bottom of the net needs to be disassembled, such as cleaning, repairing, and replacing, artificial diving must be relied on 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 a bottom net and a side net by bundling the net cables together, which is very difficult to disassemble and can easily damage the net, resulting in a decrease in the work efficiency of the aquaculture platform and an increase in the cost of artificial equipment. SUMMARY

[0004] The purpose of the present application is to provide a folding net device of a fixed marine aquaculture platform and a use method thereof, which can solve the problems of deformation of the bottom of the net and shrinkage of the aquaculture space caused by the bottom of the net rising under the action of waves and currents, and difficulty in disassembling the net.

[0005] The technical solution of the present application is as follows:

[0006] A folding net device of a fixed marine aquaculture platform, comprising a plurality of steel pipe leg columns, a mounting truss is arranged between the plurality of steel pipe leg columns; the top of the mounting truss is used for mounting a side net, and the inner side wall is used for mounting a bottom net; the top of the steel pipe leg column is fixed with a deck, and the bottom of the deck is fixedly connected with the top of the side net through a support net cable; the mounting truss is driven to lift by a lifting mechanism, and the mounting truss can drive the bottom net to lift and drive the side net to fold during lifting;

[0007] The lifting mechanism comprises a winch fixed on the deck, the mounting truss is fixed with an ear, and the steel rope of the winch penetrates the deck and is fixedly connected with the ear.

[0008] Further, the installation truss comprises an outer frame connected by every two adjacent first circular pipes, and the outer frame has a plurality of staggered second circular pipes inside.

[0009] Further, the number of steel pipe legs is four, and arranged in a rectangular form; the number of first circular pipes is four, and every two adjacent first circular pipes are connected by a third circular pipe.

[0010] Further, the top of the installation truss is fixed with a first fixing rod for connecting with the side net, and the inner side wall of the installation truss is fixed with a second fixing rod for connecting with the bottom net.

[0011] Further, two supports are fixed on the third circular pipe, a pulley is installed between the two supports, and the inner side of the steel pipe leg is fixed with a sliding rail matched with the pulley.

[0012] Further, an electric push rod is arranged on the support, the body of the electric push rod and the pulley are connected with the support through a rotating shaft, the push rod of the electric push rod is hinged with a limiting rod, the first end of the limiting rod is hinged on the support, and a plurality of limiting teeth inclined downward are fixed longitudinally on the sliding rail to block the limiting rod.

[0013] Further, the steel rope is connected with the longitudinal net cable of the side net through a plurality of sliding rings.

[0014] A method for using the folding net device of the fixed ocean aquaculture platform, the method is as follows:

[0015] Case one: when the depth of the net needs to be adjusted;

[0016] Step 11: the push rod of the electric push rod is elongated to lift the limiting rod, so that the limiting rod is separated from the limiting teeth;

[0017] Step 12: the winch winds up or unwinds the steel rope to lift or lower the installation truss, so as to drive the bottom of the net to be lifted or lowered, until the installation truss reaches the predetermined depth, and then the winch is stopped;

[0018] Step 13: the electric push rod is shortened to lower the limiting rod, and the adjustment of the depth of the net is completed;

[0019] Case two: when the net needs to be disassembled;

[0020] Step 21: the push rod of the electric push rod is elongated to lift the limiting rod, so that the limiting rod is separated from the limiting teeth;

[0021] Step 22: the winch winds up the steel rope to lift the installation truss, so as to drive the bottom of the net to be lifted to fold the side net, until the installation truss is lifted out of the water surface, and then the winch is stopped;

[0022] Step 23: cut the rope between the bottom net and the second fixing rod, and the rope between the side net and the first fixing rod, so as to realize the disassembly of the net.

[0023] Further, in order to smoothly lift the limiting rod, the installation truss is lowered by a distance before the limiting rod is lifted, so as to avoid the limiting rod being stuck by the limiting teeth when the limiting rod is lifted.

[0024] The present application has the following beneficial effects:

[0025] Compared with the traditional net constraint method, the installation truss can reduce the deformation of the net when the wave and the current have a great influence in the face of bad weather.

[0026] The limiting rod and the limiting tooth cooperate to keep the bottom of the net at a certain predetermined depth, so that the net does not rise greatly under the impact of the wave and the current, and the volume of the breeding space is not greatly changed.

[0027] The installation truss is used as the frame for fixing the net, and the bottom net and the side net are tied to the second fixing rod and the first fixing rod respectively, so as to ensure the closed breeding space and facilitate the disassembly of the net.

[0028] When the net needs to be disassembled, the lifting mechanism can directly lift the bottom of the net out of the water, which is convenient for the staff to operate and reduces the difficulty of the operation.

[0029] The present application can solve the problems of the fixed marine aquaculture platform, such as the deformation of the net bottom and the reduction of the breeding space caused by the rising of the net bottom under the action of the wave and the current, and the difficulty of disassembling the net. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of the present application.

[0031] Figure 2 is a top view schematic diagram of the present application.

[0032] Figure 3 is a front view schematic diagram of the installation truss.

[0033] Figure 4 is a top view schematic diagram of the installation truss.

[0034] Figure 5 is a structural schematic diagram of the support.

[0035] Figure 6 is a structural schematic diagram of the bottom net and the side net.

[0036] Figure 7is the structural diagram of the first fixed rod and the second fixed rod.

[0037] Figure 8 is the structural diagram of the limiting rod and the limiting tooth.

[0038] Figure 9 is the contrast diagram of the lowering and lifting of the limiting rod.

[0039] Figure 10 is the structural diagram of the lifting mechanism.

[0040] Figure 11 is the structural diagram of the guide rail.

[0041] Figure 12 is the front view diagram of the present application.

[0042] In the figure: steel pipe leg column 11, installation truss 21, side net 14, bottom net 13, deck 12, support net cable 15, lifting mechanism 3, winch 31, lifting lug 24, steel rope 32, first circular pipe 211, second circular pipe 212, first fixed rod 23, second fixed rod 22, short rod 26, third circular pipe 213, support 25, pulley 42, slide rail 41, electric push rod 45, rotating shaft 46, limiting rod 44, limiting tooth 43, slip ring 33. DETAILED DESCRIPTION

[0043] The present application will be further described below in conjunction with the accompanying drawings.

[0044] As shown in Figures 1 to 12 , the present application provides a first embodiment of a folding net device of a fixed marine culture platform, comprising a plurality of steel pipe leg columns 11, which are inserted into the seabed at the bottom and extend out of the sea level at the top, and an installation truss 21 arranged between the plurality of steel pipe leg columns 11; the top of the installation truss 21 is used for installing a side net 14, and the inner side wall is used for installing a bottom net 13, so that the side and bottom of the net are separated, which is beneficial to improve the efficiency and reduce the damage to the net when disassembling the net. The top of the steel pipe leg column 11 is fixed with a deck 12, and the bottom of the deck 12 is fixedly connected with the top of the side net 14 through a support net cable 15, which can support the net and make the net use the rigid structure of the installation truss 21 to strengthen the bottom of the net, so that the net will not be deformed obviously when facing the impact of waves and currents, and the performance of the bottom of the net against waves and currents is improved.

[0045] The installation truss 21 is driven to lift by a lifting mechanism 3, and the bottom net 13 and the side net 14 can be lifted simultaneously during the lifting of the installation truss 21; the upper part of the side net 14 extends out of the sea level, and the lifting mechanism 3 drives the installation truss 21 to rise, thereby driving the bottom net 13 to rise, and the lower part of the side net 14 is folded upward and out of the water, so that the staff can operate conveniently, and the difficulty of the related operation is reduced. The lifting mechanism 3 comprises a winch 31 fixed on the deck 12, the installation truss 21 is fixed with a lifting lug 24, the steel wire 32 of the winch 31 penetrates the deck 12 and is fixedly connected with the lifting lug 24, and the deck 12 has a through hole for the steel wire 32 to penetrate. The winch 31 drives the steel wire 32 to move upward, thereby driving the installation truss 21 to move upward, thereby driving the bottom net 13 to move upward, and further driving the side net 14 to fold.

[0046] The installation truss 21 comprises an outer frame connected by every two adjacent first circular pipes 211, and a plurality of staggered second circular pipes 212 are arranged in the outer frame; the installation truss 21 is a steel structure and is manufactured by welding. The steel structure can ensure that the installation truss 21 has sufficient strength and rigidity and will not be deformed and damaged under the impact of waves and sea currents, and at the same time, the installation truss 21 has a certain mass, so that it can naturally sink in water.

[0047] The top of the installation truss 21 is fixed with a first fixing rod 23 for connecting with the side net 14, and the inner side wall of the installation truss 21 is fixed with a second fixing rod 22 for connecting with the bottom net 13; both of them are connected with the installation truss 21 through a plurality of short rods 26, the side net 14 is connected with the first fixing rod 23 in a bundling manner, and the bottom net 13 is also connected with the second fixing rod 22 in a bundling manner, so that the installation and dismounting are facilitated. The gap between the first fixing rod 23, the second fixing rod 22 and the installation truss 21 needs to be smaller than the volume of fish, so as to prevent fish from escaping from the gap.

[0048] On the basis of the previous embodiment, the second embodiment of the application is provided, wherein the number of the steel pipe legs 11 is four, and the steel pipe legs 11 are arranged in a rectangular form; the number of the first circular pipes 211 is four, and every two adjacent first circular pipes 211 are connected through a third circular pipe 213.

[0049] The third circular pipe 213 is fixed with two supports 25, and a pulley 42 is arranged between the two supports 25; the inner side of the steel pipe leg 11 is fixed with a sliding rail 41 matched with the pulley 42, and the pulley 42 and the sliding rail 41 can play a limiting and guiding role when the installation truss 21 is lifted.

[0050] On the basis of the previous embodiment, the third embodiment of the present application is provided with an electric push rod 45 on the support 25, the electric push rod 45 is a waterproof electric push rod 45, the body of the electric push rod 45 and the pulley 42 are connected with the support 25 through a rotating shaft 46; the push rod of the electric push rod 45 is hinged with a limiting rod 44, the first end of the limiting rod 44 is hinged on the support 25; a plurality of limiting teeth 43 downwardly inclined are fixed on the slide rail 41 longitudinally, for blocking the limiting rod 44.

[0051] The electric push rod 45 is retracted and extended to drive the lifting and lowering of the limiting rod 44; when the limiting rod 44 is lifted, the limiting rod 44 does not interfere with the limiting teeth 43, and the installation truss 21 can be lifted and lowered; when the limiting rod 44 is lowered, if the installation truss 21 rises or falls, the limiting rod 44 will contact and collide with the limiting teeth 43, thereby limiting the vertical displacement of the installation truss 21.

[0052] In the normal working state, the installation truss 21 is suspended by the steel rope 32 and kept at a fixed depth, but due to the action of waves and ocean currents in the marine environment, the installation truss 21 may be driven by the impact of waves and ocean currents, causing it to move vertically upward, thereby causing the side net 14 to fold and the breeding space to be significantly reduced. The cooperation of the limiting teeth 43 and the limiting rod 44 is to prevent the installation truss 21 from moving upward under the action of waves and ocean currents, thereby ensuring the stability of the breeding space.

[0053] In this embodiment, when the depth of the net needs to be adjusted, first, the electric push rod 45 is extended to lift the limiting rod 44, then the winch 31 winds up or releases the steel rope 32 to lift or lower the installation truss 21, thereby lifting or lowering the bottom of the net, until the installation truss 21 reaches the predetermined depth, and then stop the winch 31; finally, the electric push rod 45 is shortened to lower the limiting rod 44, and the adjustment of the depth of the net is completed. In order to smoothly lift the limiting rod 44, the installation truss 21 can be lowered by a distance before being lifted to avoid being stuck by the limiting teeth 43 when the limiting rod 44 is lifted.

[0054] When in the normal breeding state, the lifting mechanism 3 holds the installation truss 21, keeping the installation truss 21 at a certain depth, at the same time, the limiting rod 44 is kept in the lowered state, so that the limiting rod 44 is limited by the limiting teeth 43, thereby limiting the installation truss 21, avoiding the swing and upward movement of the bottom of the net caused by the occasional large impact of waves and ocean currents.

[0055] When facing bad weather, the impact of the wave becomes larger, and the flow rate of the current becomes faster, which can lower the net to the deepest part, and then the electric push rod 45 is shortened, and the limiting rod 44 is lowered, at this time, even if the bottom of the net moves upward under the action of the wave and the current, it will be blocked by the limiting teeth 43, so that the bottom of the net can only move in a small range, and the breeding space will not be obviously reduced, at the same time, the cooperation of the pulley 42 and the sliding 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.

[0056] In the above two cases, the bottom of the net is tightly fixed on the rigid structure of the installation truss 21, and the bottom of the net will not be deformed obviously to affect the size of the breeding space.

[0057] When the net needs to be disassembled, the bottom of the net can be directly lifted out of the water surface for operation, and the bottom net 13 and the side net 14 are tied at different positions, and only the corresponding position of the tying rope needs to be cut to realize the separate disassembly of the two nets.

[0058] On the basis of any one of the above embodiments, the fourth embodiment of the application provides that the steel wire 32 is connected with the longitudinal net cable of the side net 14 through a plurality of sliding rings 33, a sliding ring 33 is sleeved between every two transverse net cables of the side net 14, the sliding ring 33 is supported by the top of the transverse net cable, and the steel wire 32 is naturally tensioned under the action of gravity of the installation truss 21. Due to the tensioning of the steel wire 32, the side net 14 will not be deformed greatly in water, and during the upward movement of the installation truss 21, the side net 14 can be folded along the steel wire 32 to prevent the side net 14 from being skewed during the folding process.

[0059] On the basis of any one of the above embodiments, the application provides a use method of the folding net device of the fixed marine aquaculture platform, and the method is as follows:

[0060] Case one: when the depth of the net needs to be adjusted;

[0061] Step 11: the push rod of the electric push rod is elongated, the limiting rod is lifted, and the limiting rod is separated from the limiting teeth;

[0062] Step 12: the winch retracts or releases the steel wire, the installation truss is lifted, so that the bottom of the net is lifted, and the winch is stopped until the installation truss reaches the predetermined depth;

[0063] Step 13: the electric push rod is shortened, the limiting rod is lowered, and the adjustment of the depth of the net is completed.

[0064] Case two: when the net needs to be disassembled;

[0065] Step 21: the push rod of the electric push rod is elongated, the limiting rod is lifted, and the limiting rod is separated from the limiting teeth;

[0066] Step 22: the hoist retracts the steel rope, the installation truss is lifted, the bottom net is lifted, the side net is folded, and the hoist is stopped after the installation truss is lifted out of the water surface.

[0067] Step 23: the ropes between the bottom net and the second fixed rod and between the side net and the first fixed rod are cut, and the net is disassembled.

[0068] In steps 11 and 21, in order to smoothly lift the limiting rod, the installation truss can be lowered by a distance before the limiting rod is lifted, so that the limiting rod is not stuck by the limiting teeth when the limiting rod is lifted.

[0069] The above only describes the preferred embodiments of the present application and should not be construed as limiting the present application. Any equivalent changes and modifications made within the scope of the present application should be included in the scope of the present application.

Claims

1. A folding netting device for a stationary marine farming platform, c h a r a c t e r i s e d in that The application relates to a steel pipe leg column installation truss, which comprises a plurality of steel pipe leg columns, a mounting truss arranged between the steel pipe leg columns, a deck fixed to the top of the steel pipe leg column, a support net fixed to the bottom of the deck and connected with the top of the side net, and a lifting mechanism fixed to the deck. The lifting mechanism comprises a winch fixed to the deck, and a lifting lug fixed to the mounting truss. The mounting truss comprises an outer frame formed by two adjacent first circular pipes, and a plurality of second circular pipes arranged in the outer frame. The number of the steel pipe leg columns is four, and the steel pipe leg columns are arranged in a rectangular form. The number of the first circular pipes is four, and two adjacent first circular pipes are connected through a third circular pipe. Two supports are fixed to the third circular pipe, a pulley is arranged between the two supports, and a sliding rail matched with the pulley is fixed to the inner side of the steel pipe leg column.

2. A folding netting arrangement for a stationary marine farming platform according to claim 1, characterized in that An electric push rod is arranged on the support, the body of the electric push rod and the pulley are connected with the support through a rotating shaft, the push rod of the electric push rod is hinged with a limiting rod, the first end of the limiting rod is hinged on the support, and a plurality of limiting teeth downwardly inclined are longitudinally fixed on the sliding rail and used for blocking the limiting rod.

3. A folding netting arrangement for a stationary marine farming platform according to claim 1, characterized in that A first fixing rod used for connecting with the side net is fixed to the top of the mounting truss, and a second fixing rod used for connecting with the bottom net is fixed to the inner side wall of the mounting truss.

4. A method of using a folding netting arrangement based on the fixed marine farming platform according to claim 1, characterized in that, The steel wire is connected with the longitudinal net cable of the side net through a plurality of sliding rings. The method is as follows: Case one: when the depth of the net is adjusted; Step 11: the push rod of the electric push rod is elongated, the limiting rod is lifted, and the limiting rod is separated from the limiting teeth; Step 12: the winch is used to wind or release the steel wire, the mounting truss is lifted or lowered, the bottom of the net is lifted or lowered, and the winch is stopped until the mounting truss reaches the predetermined depth; Step 13: the electric push rod is shortened, the limiting rod is lowered, and the adjustment of the depth of the net is completed; Case two: when the net is disassembled; Step 21: the push rod of the electric push rod is elongated, the limiting rod is lifted, and the limiting rod is separated from the limiting teeth; Step 22: the winch is used to wind the steel wire, the mounting truss is lifted, the bottom of the net is lifted, the side net is folded, and the winch is stopped until the mounting truss is lifted out of the water; 5. A method of using a folding netting arrangement of a stationary marine farming platform according to claim 4, characterized in that, Step 23: the ropes used for binding the bottom net and the second fixing rod and the ropes used for binding the side net and the first fixing rod are cut, and the net is disassembled. In the steps 11 and 21, in order to smoothly lift the limiting rod, the mounting truss is lowered by a distance before the limiting rod is lifted, so that the limiting rod is not stuck by the limiting teeth when the limiting rod is lifted.

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