JPH11206265A - Fish preserve device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fish preserve device designed to easily sink the fish preserve under the sea level or allow it to float to intend for raising healthy fishes and also facilitate easy inspection/maintenance works such as the fouling removal or breakage repair of the net of the fish preserve. SOLUTION: This fish preserve device is so designed that the bottom of the fish preserve 2 is integrally mounted with a float 5 enabling air supply/ exhaust and water supply/discharge so as to regulate the buoyancy of the float 5 through supplying compressed air from a compressor equipped on the sea or exhausting air and ensure the fish preserve to be sunk under the sea level or allow it to float on the sea.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a float at a lower portion of a cage in which a frame is surrounded by a net, and for example, submerging a cage portion on the seabed by supplying and discharging air and seawater in the float. Or a cage device capable of floating on the sea.

[0002]

2. Description of the Related Art Conventionally, this kind of fish cage apparatus is disclosed in, for example, JP-A-6-64582, JP-A-9-107844 or JP-B-8-24510.

[0003]

Conventionally, breeding of saltwater fish has been mainly carried out by bay culture. Such an inland sea culture has a weak tidal current and is hardly exposed to waves, so that it is possible to stably install a fish cage. Since the place is close to land, it is convenient for daily feeding and management, and the time to return to the cage is short. Therefore, it was very advantageous in that it could be grown at low cost. However, as such aquaculture became more and more popular, suitable sites became scarce and overcrowded, causing various adverse effects such as illness, and often caused serious damage to the business. In order to solve such problems of inland sea culture fishery, the present invention enables offshore aquaculture suitable for healthy fish breeding, and
It is an object of the present invention to provide a fish cage device that can be grown at low cost.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a float provided with a water supply / discharge port and a water supply / drain port integrally provided at the bottom of a cage in which a frame is surrounded by a net. It is an object of the present invention to provide a fish cage device in which a cage can be floated on the sea surface by supplying pressurized air or a cage can be sunk below the sea surface by removing the pressure air in the float.

According to the present invention constructed as described above, by adjusting the amount of air in the float and appropriately adjusting the buoyancy, the fish cage can be submerged below the sea surface or floated above the sea. The aquaculture can be performed not only in the inland sea but also in the open sea, and is particularly suitable for aquaculture under the tidal sea surface.

In other words, according to the present invention, the fish cage device is submerged below the sea surface to avoid the effects of waves, time and wind that are peculiar to the ocean, and fresh seawater from the ocean is always circulated in the fish cage. By doing so, it is possible to cultivate healthy fish that is prevented from diseases such as red tide and seawater dirt.

[0007] Further, if the cage is raised above the sea by the buoyancy of the float provided at the bottom, maintenance work such as removal of dirt attached to the net or repair of the net can be easily performed. Further, since the raised cage device can be moved on the sea, the above-mentioned maintenance and inspection work and the introduction and removal of the cultured fish can be performed in the port by, for example, towing the port. Therefore, fishermen can be freed from dangerous work and heavy labor in the open sea. As described above, the present invention has solved the above-mentioned problems.

In the fish cage device of the present invention, if a float provided at the bottom of the fish cage is formed with an upper surface formed on a slope, the fish current on the slope can be constantly urged in the direction of sinking the fish cage, so that the flow of the fish is faster. The installation and emplacement of the present cage device in place is more stable. Further, if the float is provided with a large buoyancy enough to float the fish cage portion on the sea surface, the movement on the sea and the work of removing the stain on the net become easier.

In the fish cage apparatus of the present invention, a frame holding the net is formed by a pipe, an air hose and a feeding hose are connected to an upper portion of the frame, and the air hose is connected to a compressor provided on the sea. While supplying the pressurized air into the float or discharging the pressurized air in the float from an exhaust valve provided on the air hose, while storing the required amount of bait in the storage unit and feeding the feed hose to the sea. Connected to a floating feed buoy to feed food into the cage from the sea, and at the bottom of the frame, an anchor attachment / detachment mechanism that expands and contracts by the supply and discharge of pressurized air by an air hose, and the expansion and contraction of this anchor attachment / detachment mechanism If an anchor device that is inserted into the ground or anchored on the seabed is provided, for example, when this device is installed Toka work, Toka ups and downs operation of the fish preserve,
It will be very easy to set the fish on the seabed.

[0010] Further, the feed buoy is provided with a feed quantitative supply device and a feed feed pump controlled by a battery and a feed controller, and the feed fed to the feed hose is pressurized by the feed feed pump. When seawater is mixed and a predetermined amount of food is automatically pumped, feeding to the underwater cage can be automated, and labor for feeding to and from the installation site of the cage can be saved and labor can be saved. In addition, feeding when embarkation is not possible due to storm or large winds is possible. Also,
The buoy is equipped with a humidity sensor connected to the battery and the feed controller, and an electric heater that is turned on and off by the operation of this humidity sensor. If the management is performed automatically, it is possible to prevent seawater from flowing into the buoy under stormy weather, and it is possible to always keep the bait in the storage unit in a good dry state.

[0011] Further, a motor and a screwing body driven by a battery and a feed controller are provided at the bottom of the feed container in the feed buoy, and the feed in the storage unit is directed toward the quantitative feed device for the feed. If an automatic feeder for automatically feeding the food is installed, a sufficient amount of feed is ensured, so that feeding management becomes more accurate and labor is saved.

[0012] Further, the constant-quantity feeder for feeding is constituted by a circulating belt conveyor having a lower end connected to the discharge side of the automatic feeder for feeding and a top end connected to a hopper and driven by a battery and a feeding controller. For example, it becomes difficult to be influenced by the increase or decrease of the accommodation amount, and the supply amount of the bait becomes constant.

The battery provided in the feeding buoy may be a battery which can be charged from the outside periodically. The screw protrudes out of the buoy and rotates with the tide. By connecting to a tidal current generator of a private power generation type including a dynamo that generates electric power, it becomes possible to use energy of waves or tidal currents.

In the apparatus of the present invention, the air hose for supplying and discharging the pressurized air for raising and lowering the cage to the float is provided with a distribution valve which can be appropriately remotely operated so that the pressurized air can be separately supplied and discharged to the float and the anchor attaching / detaching mechanism. However, there are two systems, a float adjustment system and an anchor actuation system. If it is connected to a compressor installed on a fishing boat reciprocating to the installation position, the desired work can be performed with a simpler mechanism.

Further, in the frame of the fish cage, when a swivel joint having a more returning function is provided at a connection portion between the feeding hose and the air hose, the torsion of the hose generated between the feeding buoy and the fish cage due to tide or wind. Removed. This configuration is particularly suitable for installation in a place where wind waves or tides are strong and the feeding buoy is easily rotated.

In the apparatus of the present invention, the form of the anchor device is not particularly limited as long as it can ensure the installation state of the fish cage and is capable of floating and sinking integrally with the fish cage. As described above, the weight portion and the fork portion vertically provided from the lower edge of the weight portion are integrally provided, and the stability of the fish cage is maintained by being grounded to the sea floor,
An anchor attachment / detachment mechanism is provided in a hollow portion provided at the center of the back surface of the weight portion.When the anchor device is settled, the anchor attachment / detachment mechanism is grounded first to buffer the settlement. While retracting, the fork is inserted into the ground with the total load of the cage on the anchor and the cage is fixed on the sea floor, while at the time of anchor removal, the detachment mechanism is extended to pull out the fork from the sea floor. Then, it is possible to obtain an anchor device that automatically operates with a simple structure.

In the apparatus of the present invention, a balloon sucked and exhausted by the air hose is provided in the middle of the feeding hose so that the depth of the fish cage at the time of sinking can be visually recognized at the sinking position of the balloon, and its buoyancy By applying a brake to the fish cage to reduce the speed at the time of landing and controlling the landing position, the fish bottom in the fish cage can be smoothed and unnecessary shock is not applied to the fish in the fish cage. I'm done.

In the apparatus according to the present invention, the feed hose and the frame of the fish cage are connected by a detachable hook and a towing line, and the hook between the feed buoy and the fishing boat is also detachable. When connected to the towing line with a tow line, the fish cage floating on the sea is towed by a fishing boat and can be moved to the desired position.
Labor saving can be further achieved, and management and maintenance of the fish cage device can be facilitated, and a high quality fish with less damage can be provided.

[0019]

An embodiment of the present invention will be described below with reference to the drawings. The embodiment is a case where the fish cage device according to the present invention is installed on the sea floor, and as shown in FIG. 1, a feeding buoy 1 that stores a required amount of food and floats on the sea, and accommodates fish. A fish cage 2 submerged in the sea floor, a float 5 integrally provided at the bottom of the fish cage 2 and capable of air supply and exhaust and water supply and drainage;
, A feed hose 4 that connects the feed buoy 1 and the fish cage 2 to supply food, and the float 5 and the anchor device 3 attached to the bottom of the fish cage 2 are provided on the sea. An air hose 7 is provided for supplying or exhausting compressed air from a compressor 6 (described later) to adjust the buoyancy of the float 5 to make the cage 2 float or sink, and to operate the anchor device 3.

As shown in FIG. 2, the feeding buoy 1 has an upper half serving as a feed container 8 and a battery 9 provided in a lower body.
And a feed controller 10 are provided with a feed quantitative supply device 11 and a feed feeding pump 12 whose driving is controlled, respectively.
From 2 ', the feed pressure pump 12 sucks and mixes the pressurized seawater, pressurizes it to the feed hose 4, and supplies it to the fish cage 2 submerged on the seabed.

As shown in FIG. 4, the fish cage 2 is provided with a frame 14 for holding a net 13 surrounding the upper and lower sides and the periphery from the inside and the back, and using a pipe of an appropriate diameter for the frame 14. By forming a hollow continuous body structure and providing a supply / exhaust port 5 ′ at a connection portion with the float 5, the frame 14 also serves as a supply / exhaust passage to the float 5.

As also shown in FIG. 4, the anchor device 3 integrally attached to the lower end of the frame 14 includes a frusto-conical weight portion 15 in this embodiment and a plurality of fork portions 16 hanging down from the back surface. In the center of the back surface, an anchor detachment mechanism 17 formed by a bellows-shaped air cylinder that expands and contracts by supplying and discharging the pressurized air from the air hose 7 is provided. The shock is absorbed, and then the desorption mechanism 17 is evacuated and contracted, whereby the fork 16 is inserted into the seabed under the total load of the fish cage 2, and the weight 15 functions as an anchor. In addition, when raising the cage 2, float 5
Pressure air is supplied from the air hose 7 to the anchor attaching / detaching mechanism 17 in parallel with the supply of the pressurized air, and the fork 16 is pulled out by extending the bellows-shaped air cylinder to thereby remove the fish cage 2.
Used to float with

In this embodiment, the frame body 14 holding the net 13 of the fish cage includes a vertical pipe 14a framed in a hexagon as shown in FIG. 5, and a horizontal pipe 14b for connecting the vertical pipes 14a horizontally. As shown in FIGS. 1 and 4, a float 5 is integrally connected to the lowermost portion, and the supply / exhaust port 5 'is opened at the connection portion. On the other hand, float 5
The seawater supply / drainage port 18 is opened at a position adjacent to the anchor device 3 as shown in FIGS.
In addition, the whole is formed in one float, and according to the supply and discharge of the pressurized air from the air hose 7, the seawater is supplied to and discharged from the water supply / drain port 18 into the float 5 and the frame 14 so that the fish cage 2 floats. It is configured.

The float 5 provided at the lower part of the cage 2 as described above is formed on a slope having a convex upper surface in the shape of an upper surface, and on the seabed, the cage 5 is always sunk by a tidal current hitting the slope. It is configured to be urged in the direction, and in the sea, it is configured to have buoyancy to float the portion of the fish cage 2 above the float 5 on the sea surface, and in a place where the tide flows fast. In addition to stabilizing the installation and setting of the fish cage device of the present invention, when the fish cage 2 is raised to the maximum, the entire fish cage can be displayed on the sea to perform operations such as maintenance and inspection of the net 13. Makes it extremely convenient to use.

In this embodiment, the air hose 7 for supplying and discharging compressed air to and from the anchor attaching / detaching mechanism 17 and the float 5 is connected to a float adjusting system 7a and an anchor operating system 7b as shown in FIGS. It is divided into two systems. The two hoses 7a and 7b are connected to the compressor 6 provided on the fishing boat 22 via a hose joint 19, an opening / closing cock 20 and an air controller valve 21 connected to the base end thereof, respectively, so that the fish cage 2 rises and falls. Occasionally, pressurized air is supplied / discharged so that the float 5 and the anchor detachment mechanism 17 perform desired operations.

As shown in FIGS. 3 and 6, the compressor 6 for supplying pressurized air to the air hose 7 has a
If it is installed on the fishing boat 22 which can reciprocate to the installation position and is driven by the engine 22 'of the boat, a desired operation can be quickly performed with a simpler mechanism. 23 in the figure
Is a relief valve of the air hose 7b of the anchor operation system, which is evacuated when the fish cage 2 is grounded to cushion the impact at the time of landing.

When the air hose 7 (7a, 7b) and the feed hose 4 are inserted into the cage 2 through a swivel joint 24 provided at the upper center of the frame 14 of the cage.
The twisting action of the joint 24 prevents the twist.

In this embodiment, the battery 9 provided in the feeding buoy 1 includes a screw 25 projecting out of the buoy and rotating with the tide, and a dynamo 26 connecting the rotation of the screw 25 via a bevel gear mechanism 27. By connecting a private power generation type tidal current power generation device, the energy of the tidal current can be used without requiring external charging.

At the bottom of the feed container 8, an automatic feeder 29 comprising a motor 29a and a screw feeder 29b controlled by the battery 9 and the feed controller 10 is installed. The feed in the storage section is automatically fed toward the supply device 11.

Further, the feed buoy 1 is driven by the battery 9 and the feed controller 10 by connecting the lower end of the feeder 11 to the discharge side of the automatic feeder 29 and connecting the upper end to the hopper 30. If it is constituted by a circulating belt conveyor, the feed amount can be made constant without being affected by an increase or decrease in the accommodation amount.

The feed container 8 is provided with an electric heater 32 on the bottom rear surface which is connected to the battery 9 and the feed controller 10 and is turned on and off by the operation of a humidity sensor 31 provided in the container. Is kept in a good dry state, while moisture-containing air is discharged from a suction / exhaust hole 33 provided in the seaside 28 of the buoy to automatically control the humidity of the bait. The intake / exhaust hole 33 is opened downward, and the check valve 3 is provided in the opening.
4 prevents seawater from flowing into the feeding buoy 1 even in stormy weather. In addition, 3 in the figure
9 is a buoy light provided on the sea surface 28 of the buoy.

As shown in FIGS. 1, 2 and 6, in the device of the present invention, if a balloon 34 sucked and exhausted by the air hose 7 is provided at an appropriate position in the middle of the feeding hose 4, the balloon 3
At the sinking position 4, the depth of the fish cage 2 at the time of sinking can be visually recognized. In addition, since the buoyancy can apply a brake to the descending cage 2 to reduce the speed at the time of landing and control the landing position, stable installation can be performed when the installation position of the cage is deep or the tide is fast. Can be. In addition,
The mounting position of the balloon 34 is fixed at a position where it is submerged about 10 meters before the bottom of the fish cage, and is used to inject compressed air from the air hose 7a of the float adjustment system. It is desirable that the length from the balloon 34 to the feed buoy 1 has a margin of about 20 meters.

As also shown in FIGS. 1, 2, and 6, a detachable hook 35 and a towing line 36 are provided and connected between the feeding hose 4 and the frame 14 of the fish cage 2. Between the fishing boat 22 and the fishing boat 22
6, the fish cage 2 floated on the sea can be towed by the fishing boat 22 and moved to a desired position as shown in FIG. In addition, the maintenance and maintenance of the fish cage device is facilitated, and it is possible to provide a fish excellent in quality with little damage.

Although not shown, the upright pipe 14a of the frame 14 communicates with the horizontal pipe 14b and the float 5 as described above. However, as shown in FIG. The pressure air in the float 5 is connected to the supply / exhaust port 5 ′ and the supply / drain port 18 so as to be simultaneously supplied and exhausted.

Although the diameter of the cage 2 shown in the embodiment is 20 meters and the diameter of the feed buoy 1 is 4 meters, the feed buoy 1, the cage 2, the anchor device 3, the feed hose 4 Needless to say, the form of each part such as the air hose 7 is not limited to the illustrated embodiment, and each part can be changed in design according to installation conditions.

Further, the fish cage device according to the present invention is not limited to the one installed on the seabed as in the illustrated embodiment, and the upper part floats on the sea surface in the same manner as a normal fish cage device by attaching an appropriate anchor device. It may be constructed so that it is installed in a state where it is installed or a fish cage is submerged under the surface of the water.

[0037]

According to the present invention configured as described above,
As described above, for example, a fish cage can be installed in the clean sea outside the bay, so that healthy fish can be raised. In addition, it is possible to perform maintenance and inspection such as removal of dirt on the net and repair of a broken net while the fish cage portion is floated on the sea, or to move the net using a fishing boat. Furthermore, compared with the conventional cage apparatus of this type, there are many excellent effects such as the ability to perform well-growing management with a small number of people.

[Brief description of the drawings]

FIG. 1 is a partially cutaway elevational view schematically showing a use state of an embodiment.

FIG. 2 is a partially cutaway elevation view illustrating the internal structure of a feeding buoy.

FIG. 3 is a schematic diagram of a fishing boat used for using the embodiment.

FIG. 4 is a partially cutaway elevation view illustrating an internal structure of a fish cage portion.

FIG. 5 is a plan view illustrating a structure of a fish cage portion.

FIG. 6 is a schematic view showing a state in which the apparatus is moved.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Feeding buoy 2 Fish cage 3 Anchor device 4 Feeding hose 5 Float 5 'Supply / exhaust port 6 Compressor 7 Air hose 7a Float control system hose 7b Anchor operation system hose 8 Housing 9 Battery 10 Feeding controller 11 Quantitative feeding device 12 Feeding pressure pump 12' Water intake port 13 Fish net 14 Frame 14a Standing pipe 14b Horizontal pipe 15 Weight section 16 Hawk section 17 Anchor attachment / detachment mechanism 18 Water supply / drain port 19 Hose joint 20 Opening / closing cock 21 Controller valve 22 Fishing boat 22 'Engine 23 Relief valve 24 Swivel joint 25 Screw 26 Dynamo 27 Bevel gear mechanism 28 Above sea 29 Automatic feeder 29a Motor 29b Screw feeder 30 Hopper 31 Humidity sensor 32 Electric heater 33 Supply / exhaust port 34 Balloon 35 F Click 36 tow 37 hook 38 towline 39 buoy lights

Claims (12)

[Claims] 1. A float provided with an air supply / exhaust port and a water supply / drainage port is integrally provided at the bottom of a cage in which a frame is surrounded by a net, and pressurized air is supplied to the float from a compressor provided on the sea and the float is provided on the sea surface. A fish cage device that floats the fish cage and removes the pressurized air inside the float to sink the fish cage below the sea surface. 2. A float having an upper surface formed on a slope is used as the float so as to constantly urge the cage in a direction to sink the cage by a tidal current hitting the slope. 2. A buoyancy for floating above the sea surface.
Fish cage equipment. 3. The frame body is formed by a pipe communicating with the float, an air hose and a feed hose are connected to an upper portion of the frame body, and a base end of the air hose is connected to the compressor provided on the sea. By supplying the pressurized air into the float through the frame or by discharging the pressurized air in the float from an exhaust valve provided in the air hose, the feeding hose is used to store a required amount of food in a storage portion. An anchor attachment / detachment mechanism which is connected to a feed buoy floating on the sea to supply the bait from the sea into the cage, and which is provided at a lower portion of the frame body to expand and contract by supply and discharge of pressurized air by the air hose; The fish cage device according to claim 1, further comprising an anchor device that is inserted into or pulled out of the ground on the seabed by expansion and contraction of the sea floor. 4. The feed buoy includes a feeder feeding pump and a feeder feeder pump, which is controlled by a battery and a feeder controller provided in the housing, and feeds feeder to a feeder hose by a feeder feeder pump. While the pressurized seawater is mixed to automatically feed a predetermined amount of food, a humidity sensor connected to the battery and the feed controller, and an electric heater that is turned on and off by the operation of this humidity sensor are provided. Open intake and exhaust holes in the sea,
4. The fish cage according to claim 3, wherein the humidity of the food in the storage section is automatically controlled. 5. A bait storing unit for the bait in the feeding buoy comprises a motor and a screw feeder, which are controlled by the battery and a feeding controller, at the bottom thereof, and a feeder for feeding the bait quantitatively. 5. The fish cage according to claim 4, further comprising an automatic feeder for feeding the food in the storage section toward the feeder. 6. The feeder for feeding fixed amount of food is connected to a discharge side of the automatic feeder of the feeder by a circulating belt conveyor which is connected to a hopper at an upper end and driven by the battery and a feed controller. The fish cage device according to claim 5, wherein the fish cage device is configured. 7. The battery is connected to a screw that protrudes out of the feeding buoy and rotates with the tide, and a private power generation type tidal current generator having a dynamo that generates power by the rotation of the screw. The fish cage device according to claim 4, wherein 8. The air hose comprises two systems: a float adjusting system connected to the frame of the fish cage, and an anchor operating system connected to the anchor detaching mechanism. 4. The fish cage device according to claim 3, wherein the hose cage, the opening / closing cock, and the air control valve are connected to the compressor installed on a fishing boat that reciprocates to the installation position of the fish cage when necessary. 9. The frame body of the fish cage is provided with a swivel joint having a return function at a connection portion between the feeding hose and the air hose, and the torsion of the hose caused between the feeding buoy and the fish cage by a tide. 4. The fish cage device according to claim 3, wherein said fish cage is removed. 10. The anchor device includes a weight portion and a fork portion suspended from a lower edge of the weight portion, and the anchor device includes the anchor attaching / detaching mechanism in a hollow portion provided at a central portion on the back surface of the weight portion. At the time of the bottom of the fish cage, the bottom of the fish cage is buffered by the air cushion of the anchor detaching mechanism to be grounded first, then the anchor detaching mechanism is contracted through the air hose, and the anchor is fixed by the total load of the fish cage, 4. The fish cage device according to claim 3, wherein the anchor detaching mechanism is extended to pull out the fork portion from the seabed when the anchor is removed. 11. The feeding hose is provided with a balloon which is sucked and exhausted by the air hose in the middle, so that the depth of the fish cage at the time of sinking can be visually recognized at the sinking position of the balloon, and the fish cage can be buried by its buoyancy. 4. The fish cage device according to claim 3, wherein a brake is applied to reduce the speed at the time of landing, or the landing posture is controlled. 12. A hook that connects the feeding hose and the frame of the fish cage with a detachable hook and a towing line, and also allows the feeding buoy and a fishing boat to detachably attach. 4. The fish cage device according to claim 3, wherein the fish cage floated on the sea is towed by a fishing boat and can be moved to a desired position by connecting the fish cage to the sea.