JPH0324044Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a float for floating an object or structure in water, and relates to a float that can freely adjust its buoyancy.

(Prior Art) Conventionally used floats (buoys) are generally made of metal or synthetic resin, and are widely used as markers on water or as floating bodies for underwater (undersea) structures. All conventional floats are closed spherical bodies, and the magnitude of their buoyancy is determined in advance by their size. Also,
In some cases, used containers such as drum cans are used as floats, but since they are all sealed, the amount of buoyancy is constant.

An example of the use of a float in a structure for cultivating scallops will be explained.

4 to 6 are explanatory front views of the aquaculture structure, FIG. 5 is an omitted plan view, and FIG. 6 is an explanatory side view showing the relationship with the flow of the tide.

The structure for cultivating scallops includes a trunk rope 1 that hangs a cultivation cage, an intermediate float 2 that lifts the trunk rope 1 to a predetermined height in the sea, and a float floating on the sea surface to display the installation position of the trunk rope 1. It consists of a surface float 3 for position indication, and an anchor rope 4 for fixing the main rope 1.

The trunk rope 1 has a total length of 200 to 300 m, and anchors 10 are connected to both ends of the trunk rope via anchor ropes 4.
is fixed to the seabed by. Anchor 10 is 60
~120Kg iron anchors or 5-10t concrete blocks are used.

In addition, an intermediate float 2 is attached to the trunk rope 1 via the rope 11 to raise the trunk rope 1 to a predetermined height in the sea, and the number of intermediate floats 2 is such that when the aquaculture cage is suspended, there are many feed organisms and the water temperature is It is installed so that it is located in a layer with little change, and is increased according to the number of culture cages and the growth of scallops.

Furthermore, a surface float 3 for indicating the current position is attached to the main rope 1 via a rope 12, and normally 10 to 15 surface floats 3 are attached to one main rope 1. Below the main rope 1, a rope 14 having a weight 13 is connected continuously to the rope 12 or in the vicinity of the rope 12. The weight 13 maintains the main rope 1 in position and at the same time prevents the surface float 3 from vibrating due to waves. That is, if the vibrations caused by the wave force of the surface float 3 are applied to the scallops through the rope 12, it will have a negative effect on the growth of the scallops and cause the shells to become deformed. or made of concrete. Further, if necessary, a weight 19 is attached to the intermediate rope of the weight 13 via 18 in order to prevent the main rope 1 from floating due to the intermediate float 2.

The culture cage 16 is suspended from the trunk rope 1 of the scallop culture structure installed in this way.
A sink 1 is placed at the bottom of the aquaculture cage 16 to dampen vibrations.
7 is attached.

(Problems to be solved by the invention) However, conventionally known floats are closed type, and the buoyancy cannot be adjusted individually, so aquaculture structures using closed type floats have the following problems. Ta.

That is, in normal tidal currents, as shown in Figure 5, the aquaculture cages are suspended almost vertically, although the ropes 12 and 14 are slightly inclined in the direction of the tidal currents indicated by the arrows, but in early summer when the currents are fast. When the sea is rough, such as during a typhoon or a typhoon, the ropes 12 and 14 tilt and the aquaculture cages end up on the seabed, as shown in FIG. The problem is that when the aquaculture cages reach the ocean floor, the scallops become food for starfish and other creatures on the ocean floor.

In addition, as scallops grow, they naturally become heavier, so the buoyancy of the intermediate float 2 as a whole is insufficient, and foreign matter (e.g., mussels, barnacles, red coral, polydora, etc.) adheres to the culture cages and scallops. As a result, it becomes heavier and gradually sinks.

To prevent this sinking, it is necessary to increase the number of intermediate floats to increase buoyancy, but to increase the number of intermediate floats 2, the main rope 1 must be raised to the sea and attached. Conventionally, such work for installing intermediate floats was carried out over a full day from early morning until evening, and 50 to 100 intermediate floats were installed. This work is often done once a week.

Further, in addition to the above reasons, the number of intermediate floats 2 decreases due to breakage, breakage of the rope, and the like, so there is a problem in that these decreases must be replenished as appropriate.

The work of installing the intermediate float 2 is not only dangerous work when the current is fast or rough, but also doing this work after pulling the float out to sea when the water temperature is high can have negative consequences for the scallops. I will invite you.

Furthermore, since the buoyancy is constant depending on the size of the floats, it is possible to increase the overall buoyancy by increasing the number of floats, but it is not possible to obtain arbitrary buoyancy.

Above, we have explained the case where it is used in a structure for cultivating scallops, but because it is impossible to adjust the buoyancy of conventional closed floats, it is possible to quickly move the submerged structure to any depth position in response to changes in the environment. could not be maintained.

(Purpose of this invention) This invention was made in view of the current situation, and provides a float that has a simple structure and can freely adjust its floatation and sinking to obtain any desired buoyancy by increasing or decreasing the amount of air filled inside. This is what I am trying to do.

(Means for solving the problems) This invention was constructed as follows in order to achieve the above object.

That is, it consists of a floating body having an opening at the bottom and molded from a flexible material, and an air hose with a coupling attached to one end and the other end inserted from the opening of the floating body to near the top surface. The feature is that a closed type float is fixed via a rope.

(Function) Since the float body has an opening on the bottom, the magnitude of buoyancy increases or decreases depending on the amount of air filled inside, and the air to the float body is filled by an air pump connected to an air hose. Conversely, air is automatically vented by water pressure by opening the sealing plug of the air hose.

(Example) Next, an example of this invention will be described in detail based on the drawings.

FIG. 1 is a front view of the float adjustable float according to this invention, FIG. 2 is a sectional view, and FIG. 3 is a partial front view of an example of use in a structure for cultivating scallops.

Reference numeral 20 denotes a float that can be adjusted to float or sink.
It consists of.

The float body 21 is not a sealed container body like conventional floats, but has a diameter of about 700 mm, like an upside-down bag.
It has a cylindrical shape with a height of about 650 mm, and has an opening 27 formed in the bottom surface 26. The floating body 21 is manufactured from a flexible material such as soft synthetic resin or cloth-reinforced rubber.

One end of the air hose 23 is provided with a coupling ring 30 that is attached to an air pump or compressed air cylinder, and the other end is connected to the bottom of the floating body 21 so that the amount of air within the floating body 21 can be adjusted. It is inserted from the opening 27 to the vicinity of the upper surface 28, leaving a gap 31. The coupling ring 30 is provided with a sealing plug, and the air hose 23 has a sufficient length so that the coupling ring 30 can be operated on board. In addition, when a three-way valve is disposed below the coupling ring 30, the air inside the floating body 21 can be smoothly vented.

The air hose 23 is attached to the air hose attachment rope 22 fixed to the upper surface of the floating body 21 by an attachment member 32 such as a ring or string. At the tip of the air hose attachment rope 22, there is a float 2 that floats on the sea surface to indicate the position of the air hose 23 attached and to make it easier to pull the coupling ring 30 onto the ship.
9 is provided.

Further, a hanging rope 24 that intersects in a criss-cross shape below is fixed to the side surface of the floating body 21, and a hanging fitting 33 is attached to this hanging rope 24.

It is also possible to attach the air hose 23 to another structure, and in this case, the air hose attachment rope 22 can be omitted.

Next, a case will be described in which the adjustable float 20 according to this invention is used in a structure for cultivating scallops.

As shown in FIG. 3, an intermediate float 2a is attached via an intermediate float rope 11a to a main rope 1a whose both ends are fixed with anchors, and
Floaters 20 that can be floated and sunk are installed at appropriate intervals. The adjustable float 20 is connected to a proper position of the main rope 1a by a fixed rope 34 passed through a hanging fitting 33. The adjustable float 20 is the intermediate float 2.
Although it may be used in combination with a, it is also possible to omit the intermediate float 2a and use it alone.

Further, as in the conventional example, a position indicating float 3a and a weight 13a are attached to the trunk rope 1a via ropes 12a and 14a, respectively, and a culture cage 16a is suspended therefrom.

To send air to the adjustable float 20, connect the coupling ring 30 to an onboard air pump or compressed air cylinder, etc., and use the coupling ring 30 to blow air.Conversely, to remove air, open the sealing plug of the coupling ring 30. automatically released by water pressure. If a three-way valve is disposed below the coupling ring 30, this air adjustment will be easier.

In this way, by using the adjustable float 20, the buoyancy can be adjusted freely, so that scallops can always be cultured under suitable environmental conditions.

In the above embodiments, the adjustable float according to this invention is used in a structure for cultivating scallops, but it is not limited to this, and can be used as a float for raising and lowering various fish cages, or Various usage examples can be considered, such as as an underwater lift for lifting objects.

(Effects of the invention) As is clear from the above explanation, the amount of air filled inside can be freely adjusted, and the magnitude of buoyancy can be freely changed.
It becomes possible to maintain the underwater structure at a constant water depth position. Therefore, when used in cages or shellfish culture structures, fish, shellfish, etc. can be immediately protected from changes in the natural environment. Furthermore, since the adjustable float is not a closed type but an open type with an opening provided at the bottom, there is no risk of it bursting due to air filling. Furthermore, since the buoyancy adjustment operation is a simple operation of connecting the coupling to an air pump or compressed air cylinder, it can be performed safely and quickly.

[Brief explanation of the drawing]

Fig. 1 is a front view of the float adjustable float according to this invention, Fig. 2 is a sectional view, Fig. 3 is a partial front explanatory view showing an example of use in a scallop culture structure, and Fig. 4
Figures 6 to 6 show an example of the use of a conventional float in a structure for cultivating scallops. Figure 4 is an explanatory front view, Figure 5 is an omitted plan view, and Figure 6 is a diagram showing the flow of the tide. FIG. 20 is a floating adjustable float, 21 is a float body, 2
2 is a rope, 23 is an air hose, 24 is a hanging rope, 26 is a bottom surface, 27 is a bottom opening, 28 is a top surface, 29 is a float, and 30 is a coupling.

Claims (1)

[Scope of utility model registration request] The floating body has an opening on the bottom and is made of flexible material, and a coupling ring is attached to one end.
An adjustable float comprising an air hose whose other end is inserted from an opening of the float body to near the top surface, and a closed float is fixed to the float body via a rope.