JP2006191847A - Block for constructing seaweed bed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a block for constructing a seaweed bed always holdable exposedly from the sand by extending a leg part even in case of being embedded in the sand of the bottom of the sea, installable even at a place deep at the bottom of the sea, thus also effective as a fishbank. <P>SOLUTION: The block for constructing a seaweed bed is provided by the following way. The surface of a concrete block 7 is furnished with an uneven part 10. Through holes 11 are opened from the top surface of the concrete block 7 to the bottom. Four sheath pipes 8 are penetrated so as to project their tops from the top surface of the concrete block. Pipe-shaped legs 14 are vertically movably penetrated inside these sheath pipes 8. The legs 14 are then fixed with fixing pins 17 on the top side of the sheath pipes 8 so as to project the legs 14 from the bottom of the block by a predetermined length each. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an algae bed building block that is installed in the sea near a coast and promotes the growth of seaweed.

In order to artificially propagate the seaweed necessary for the breeding of fish, as shown in Fig. 8, the algae bed building block 1 made of concrete is submerged in the ground 2 on the seabed, and seaweed 4 is generated on this surface. Has been done. However, since the conventional algae bed building block 1 is installed by being submerged in the seabed 2, there is a problem that the surface of the seaweed 4 is lost due to the movement of the sand 3. Moreover, since the conventional block 1 for creating a seaweed bed is arranged side by side on the ground 2 on the seabed 4 to 5 m from the sea surface where the sun rays reach, there is a problem that the installation place is limited.

In addition, in order to promote the formation of seaweed on the surface of the block, a substrate surface is formed of a metal containing iron as a main material, and this is used as a mold, and concrete is poured into the block to create a seaweed bed building block (for example, a patent) Reference 1) and a seaweed bed building block (for example, Patent Document 2) in which sea shells are hardened with cement and have irregularities on the surface have been developed (for example, Patent Document 2). Therefore, there was a problem that the surface was gradually covered with sand 3 and the seaweed 4 disappeared.
JP2004-222530 JP 2004-305091 A

The present invention improves the above problems, and even when buried in the seabed sand, it can be kept exposed from the sand by extending the legs, and can also be installed in a deep seafloor as a fish reef. Provides an effective block for building a seaweed bed.

The seaweed bed building block according to claim 1 of the present invention has three or more sheath pipes that form an uneven portion on the surface of the concrete block and penetrate from the top surface to the bottom surface of the concrete block. It penetrates so as to protrude from the top surface of the block, and a leg portion formed by a pipe is penetrated inside the sheath pipe so as to be movable up and down, and a leg fixing portion is provided on the upper side of the sheath pipe, and here from the bottom surface of the block The leg portion is formed so as to be fixed in a state of protruding to a predetermined length.

The block for creating seaweed beds according to claim 2 of the present invention opens a plurality of through holes penetrating from the upper surface to the bottom surface of the concrete block to enlarge the block surface area, and seawater is formed in the through holes. It is characterized in that it flows in.

According to a third aspect of the present invention, there is provided a block for constructing a seaweed bed, wherein a plurality of blocks for seaweed bed construction according to the first aspect are attached to one leg.

According to the algae bed building block according to claim 1 of the present invention, when the side surface of the algae bed building block installed on the seabed ground begins to be buried in the sand, the legs of the algae bed building block are directed downward. It can be stretched and adjusted higher than the sand layer, and the algae bed building block can be exposed on the sand, so that the seaweed breeding can be maintained. Also, the leg extension work can be completed in a short time because the alga bed building block can be lifted to the sea surface with a crane. In addition, if the legs are extended long, the seaweed bed building block can be positioned about 4-5m from the sea level even in deep water, so it can also be installed in deep water where it was impossible to install in the past. The cultivation area can be expanded.

Moreover, according to the block for constructing a seaweed bed according to claim 2, since the through hole is opened up and down in the concrete block, the area where seaweed can grow is expanded, and even if a strong wave is pushed, this penetration Since it flows into the hole, it is possible to prevent the algae bed building block from moving and falling.

According to the algae bed building block according to claim 3, since one leg portion is shared and a plurality of the algae bed building blocks are attached up and down, the growth area of the seaweed can be expanded. Moreover, the thing connected in the zigzag form can improve stability.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 shows a block 6 for creating a seaweed bed, which is formed by four metal pipes penetrating from the top surface to the bottom surface at four locations near the corner of a concrete block 7 whose plane is formed in a substantially square shape. The sheath pipe 8 is attached so that the upper part protrudes slightly from the upper surface of the block and passes therethrough. In the middle of the sheath pipe 8, as shown in FIG. 3, a connection fitting 9 formed in a frame shape with, for example, an angle material is joined in order to improve the adhesion with concrete.

Further, on the upper surface and the four side surfaces of the concrete block 7, an uneven portion 10 having a V-shaped cross section is formed. Furthermore, between the center of the concrete block 7 and the said sheath pipe 8, the four through-holes 11 penetrated toward the bottom face from the upper surface are opened. Further, an inverted U-shaped hanging hook 12 protrudes between the through hole 11 and the sheath pipe 8. Reference numeral 14 denotes a leg portion formed of a metal pipe, and is inserted into the sheath pipe 8 so as to penetrate therethrough in a vertically movable manner. Further, an inverted U-shaped hanging hook 15 whose both lower ends protrude horizontally is attached to the upper portion of the leg portion 14.

As shown in FIG. 3, a pin hole 18 through which the fixing pin 17 passes is opened at the upper portion of the sheath pipe 8. Further, a plurality of pin holes 18 are opened in the leg portion 14 at predetermined intervals along the longitudinal direction thereof. The sheath pipe 8 and the leg portion 14 are formed of a stainless steel pipe or an iron pipe.

As shown in FIG. 4, the algae bed building block 6 having the above-described structure is adjusted to the protruding length of the leg portion 14 on the bottom surface of the concrete block 7 so as to be located about 4 to 5 m from the sea surface, and the ground 2 on the sea floor. Install in. If left in this state, the spores of the seaweed 4 will adhere to the surface of the concrete block 7, where the seaweed 4 will grow by being exposed to the sun. The surface of the concrete block 7 has a plurality of V-shaped concavo-convex portions 10 and through-holes 11, so that spores are easily attached and the surface area is enlarged, so that the breeding area can be widened. .

When the algae basin building block 6 is submerged in the sea in this manner, the seaweed 4 is propagated and becomes a fish reef and serves as a fish reef, and is effective for the propagation of the fish. Moreover, as shown in FIG. 3, since the through-hole 11 penetrates the concrete block 7 up and down, even if a strong wave rushes in, it flows into this through-hole 11, and even if it is supported by the leg part 14, algae It is possible to prevent the field building block 6 from moving or falling.

In this way, when the seaweed building block 6 is submerged for a long time, the sand 3 moves depending on the location, the seaweed building block 6 is buried in the sand 3 and the seaweed 4 is propagated. May disappear.

Thus, when the side surface of the seaweed bed building block 6 begins to be buried in the sand 3, the crane wire is hung on the hanging hook 12 and the seaweed bed building block 6 is lifted up to the sea surface by a crane ship. Next, an operator gets on the seaweed bed building block 6 and supports the hanging hook 15 attached to the upper part of the leg portion 14 with a crane. In this state, the fixing pin 17 is pulled out from the leg portion 14 and the pin hole 18 of the sheath pipe 8, the leg portion 14 lifted by the crane is lowered and protruded from the bottom surface of the concrete block 7 to a predetermined length. At this point, the fixing pin 17 is inserted into the pin hole 18 to fix the leg portion 14 to the sheath pipe 8. In this way, the four legs 14 are sequentially extended downward and fixed, and then the seaweed bed building block 6 is submerged in the sea and placed on the ground 2 on the seabed as shown in FIG.

Therefore, since the seaweed bed building block 6 can be exposed on the sand 3, the propagation of the seaweed 4 can be maintained. In addition, the extension work of the legs 14 can be performed by pulling up the seaweed bed building block 6 to the sea surface, so that it is not necessary for the diver to dive into the sea and the work can be completed in a short time.

In addition, conventionally, the installation place of the block 6 for building the seaweed bed is limited to the installation place because it is installed on the ground 2 at the bottom of the sea so that the light from the sun reaches and is located about 4 to 5 m from the sea surface. However, as shown in FIG. 4, if the leg part 14 is extended long, it can be installed in a deep water place, and the cultivation area can be greatly expanded.

The sheath pipe 8 and the leg part 14 may be made of stainless steel pipes which are not easily rusted. However, since the iron content is effective for the propagation of the seaweed 4, it is preferable that the sheath pipe 8 and the leg part 14 be formed of thick iron pipes. Further, by attaching a mat with spores attached to the surface of the concrete block 7, it is possible to further promote the propagation of the seaweed 4.

FIG. 6 shows another embodiment of the present invention, in which one leg portion 14 is shared by passing through the sheath pipes 8 and 8 of the upper and lower concrete blocks 7 and 7, and the top and bottom stages of the seaweed beds. The building block 6 is installed.

FIG. 7 shows another embodiment of the present invention, wherein the algae bed building blocks 6 are arranged in a zigzag pattern with their positions being shifted up and down, and the legs 14 of the middle algae bed building block 6 These are shared with the leg portions 14 on one side of the right and left algae bed building blocks 6, 6. With this structure, solar rays can be used effectively without any gaps, and since the plurality of seaweed bed building blocks 6 are connected in a plane, the structure is excellent in stability and can be prevented from being moved or overturned by waves.

In the above description, four sheath pipes 8 are penetrated through the concrete block 7 and four leg portions 14 are inserted so as to be movable up and down. However, a structure in which three or five or more are attached. But it ’s okay. In addition, the case where the leg 14 and the sheath pipe 8 are fixed with the fixing pin 17 penetrating the pin hole 18 has been described. But it ’s okay. Moreover, the uneven | corrugated | grooved part 10 formed in the surface of the concrete block 7 is not restricted to a cross-sectional V shape, Other shapes may be sufficient if a surface area can be expanded.

It is a perspective view of the block for seaweed bed construction by one embodiment of the present invention. It is a top view which shows the block for seaweed bed construction of FIG. It is sectional drawing which expands and shows the connection part of the sheath pipe penetrated to the concrete block and the leg part inserted here. It is a front view which shows the state which installed the block for seaweed building construction in the ground of the seabed. It is a front view which shows the state which extended the leg part of the block for seaweed formation. It is a front view which shows the state which attached the block for seaweed bed construction to the upper and lower two steps to one leg part by other embodiments of the present invention. It is a front view which shows the state which has shared the leg part by other embodiment of this invention, and has arrange | positioned and connected the block for seaweed formation in a zigzag form up and down. It is a front view which shows the state which installed the conventional block for seaweed formation in the ground of the seabed.

Explanation of symbols

1 Block for creating seaweed beds
2 Underwater ground
3 Sand
4 Seaweed
6 Block for creating seaweed beds
7 Concrete block
8 sheath pipe
9 Connecting bracket
10 Concavity and convexity
11 Through hole
12 Hanging hook
14 legs
15 Hanging hook
17 Fixing pin
18 pin hole

Claims (3)

An uneven portion is formed on the surface of the concrete block, and three or more sheath pipes penetrating from the upper surface to the bottom surface of the concrete block are penetrated so that the upper portion protrudes from the upper surface of the block. A leg portion formed of a pipe is penetrated so as to be movable up and down, a leg fixing portion is provided on the upper side of the sheath pipe, and the leg portion is fixed in a state protruding from the bottom surface of the block to a predetermined length. A block for building seaweed beds, characterized in that it is formed into 2. The concrete block according to claim 1, wherein a plurality of through holes penetrating from the upper surface to the bottom surface of the concrete block are opened to increase the block surface area, and seawater flows into the through holes. Block for creating seaweed beds. 2. A seaweed bed building block comprising a plurality of the seaweed bed building blocks according to claim 1 attached to one leg.