JPH0621600Y2 - Concrete block structure used for fish reef or purification - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a concrete block structure in which a padding is built-in according to the purpose so that it can be used in a fish reef, a septic tank or the like.

[Prior Art] In rivers and the like, it has been conventionally practiced to construct a fish reef to breed fish and shellfish or form a nest of fish. As for this fish reef, for example, the applicant of the present invention applied for
It is possible to use the one registered as the design registration No. 756009 and applied as a design issue. This is a fish reef in which a large number of blocks that allow fish to freely enter and leave and use the internal space as nests are laid at the bottom of a river.

By using blocks for fish reefs in this way, it is possible to promote the reproduction of seafood and increase the amount of fish caught, and its field of use is expanding not only in rivers but also in the ocean.

In rivers, in addition to securing fish catches by installing fish reefs, preventing pollution is also an important issue. In other words, even if only the fish reef is enriched, if the water in the river remains polluted, the growth environment of the seafood will deteriorate and no harvest can be expected.

[Problems to be solved by the invention] As described above, fish reefs were conventionally installed by using blocks having various shapes, but this is only used as a nest. There is. In other words, a fish reef, which is used in a general sense, is a space where seafood is easy to breed and a favorable growth environment is provided, and the blocks developed earlier also create a space and use it as a nest. I am doing it.

However, as a function only as a nest, seafood cannot settle in, for example, when sufficient food cannot be obtained at the place where it is installed. For this reason, the location of the river is limited, and it becomes impossible to construct fish reefs over a wide area, which will affect the catch.

In addition, large scale improvement is necessary for river pollution due to the problem of industrial drainage. If this is limited to the habitat of seafood, some purification measures are possible.
However, purification of rivers by simple means or pursuant to the growth of seafood has not been actually carried out, and there is also a problem in terms of improving rivers.

Therefore, the present invention can be effectively used as a fish reef,
The purpose of the present invention is to provide a structure of concrete spheres that can be used for purification of rivers.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the concrete structure of a fish reef or a concrete block used for purification of the present invention has an outer shell material in which aggregate such as pumice stone is solidified with mortar as a filler, and a hollow portion in the outer shell material. A core enclosed integrally, the core is formed of a water-soluble bait component and a pumice stone having a high porosity, and the outer shell is provided with a hole through which this component can spontaneously flow out to the outside; The pumice stone remaining in the hollow portion of the shell material after the outflow is used as a purification material for the water flowing through the hole.

〔Example〕

Hereinafter, the features of the present invention will be specifically described with reference to the embodiments shown in the drawings.

FIG. 1 is a sectional view showing a block structure of the present invention, and FIG. 2 is a perspective view showing a part of the device.

In the figure, the block is provided with an outer shell material 1 made of concrete with aggregate and mortar, and a core 2 formed at the center thereof, and is formed into a spherical shape that can be easily carried by hand.

As the aggregate 1a of the outer shell material 1, pumice stone, volcanic eruption rock, or the like having a high porosity can be adopted, and the outer shell material 1 is formed by integrating this with the filler 1b of sand and mortar. The outer shell material 1 is manufactured by a mold as in the case of a general concrete product. Since the whole outer shell 1 is spherical, it is manufactured by two half molds. Further, the outer shell 1 is provided with a plurality of holes 1c in the radial direction from its surface toward the center. These holes 1c have an inner diameter such that the bait component or the purifying agent contained in the core 2 can naturally flow out due to the flow of external water or the rolling of the block itself.

As shown in FIG. 2, the core 2 is located at the center of the outer shell 1 and is integrated so as to have a two-layer structure as a whole block. The core 2 itself is formed with different components for fish reef and river purification. For example, in the case of a fish reef, as the component 2a of the core 2, pupa powder, rice sugar, dead leaf powder, etc., which are food for seafood, are enclosed. Also, when manufacturing for purification of rivers,
As component 2a, charcoal powder or carbonized sawdust is enclosed, and pumice stone 2b is mixed in the center part to have a long-term purification action.

The block in which the core 2 is integrated in the central portion is formed as a whole by first molding the core 2 into a spherical shape and incorporating it into the molding die of the outer shell 1 like a core. The core 2 has a high packing density so that it can be effectively used as a bait or a purifying agent for fish reef by the component 2a as described above for a long period of time. Then, for example, starch paste or wheat flour is used as a binder for the various components 2a and pumice stones 2b. After kneading together with the component 2a, it is dried and solidified into a spherical shape by a natural heat or a dryer.

On the other hand, as described above, the outer shell material 1 is an aggregate 1a such as pumice stone.
A mold is made with the mortar and sand filler 1b. Then, the hole 1c can be opened at the same time as this mold is manufactured, or can be opened by a tool or the like after the filling material 1b is cured. These holes 1c only have to have an inner diameter such that the component 2a of the core 2 can flow out to the outside over a long period of time, and preferably have a size that does not allow fish and other organisms to enter.

In FIG. 1, the holes 1c are arranged in a plane including the center of the core 2 for the sake of explanation. However, as shown in FIG. 2, the holes 1c are three-dimensionally extended from the center of the core 2 in each direction. Formed as one.

Here, since the aggregate 1a of the outer shell 1 has a high porosity and a small specific gravity such as pumice and volcanic eruption rock, it has a specific gravity of about 60% of that of crushed stones that are generally commercially available. For this reason, the specific gravity of a general concrete product in which sand and crushed stone are molded with mortar is about 2.3, whereas pumice and spouted rock are used in place of crushed stone, so the specific gravity can be reduced to about 1.1 to 1.2. Therefore, when the block is submerged in water, the block itself can roll and change its posture in various ways due to the flow of water or the like.

Further, since the outer shell 1 includes aggregate 1a such as pumice stone, the surface can be roughened in addition to the smooth surface as shown in FIGS. 1 and 2. That is, as shown in FIG. 3, the surface can be roughened by making the surface uneven by the aggregate 1a, or by carving a groove with a chisel or the like after the mortar solidifies. As described above, when the outer shell 1 is roughened, the block is easily affected by the flow of water and the block is easily rolled. Further, as compared with the case where the surface is smooth, the seeded seeds, spores and the like are more likely to adhere to the surface of the outer shell 1 when the surface is roughened, and the grown product can be fed as fish food.

FIG. 4 is a plan view when the fish reef block described in the section of the prior art is installed at the bottom of a river, and FIG. 5 is II of FIG.
FIG.

The fish reef block 10 has a circular space 11 formed therein, and a notch 12 serving as a passage for water and fish is provided in the bottom between the space 11 of the adjacent fish reef block 10.
In addition, holding holes are formed on a line that extends radially from the center of the space 11.
The opening 13 is opened, and the holding rod 14 is inserted thereinto, so that the fish reef blocks 10 are restrained from each other so that their positions are not displaced. Further, a net 15 is attached to the space 11, and the block of the present invention is housed in the space 11 under the net 15 as shown in FIG.

Here, when pupa powder, fish meal, etc. are included as the component 2a of the core 2 for a fish reef, the water penetrates into the core 2 portion by the hole 1c of the outer shell 1 submerged in the water. Therefore, what was contained as the component 2a begins to dissolve spontaneously by permeation of water, and is spontaneously released from the hole 1c. Further, since the specific gravity of the block itself is light, the outer shell 1 rolls in the space 11 and the influence of the flow of water flowing in and out of the notch 12 causes the component 2a
The melting of the is promoted.

In this way, if the shell member 1 is installed in the fish reef block 10, the bait component contained in the core 2 will naturally flow out and be released into the space 11. For this reason, blocks for fish reefs
The component 2a released from the core 2 is supplied as a bait to a group of 10 fish, which can be suitably used as a fish reef. Further, since the component 2a is naturally released due to the flow of water, rolling of the block, etc., if the solubility of the binder of the component 2a is appropriately set, it can be used for a long period of time. Further, as shown in FIG. 3, if the outer shell material 1 is roughened, seedlings, spores and the like are easily attached to the surface, and the grown one can be supplied as fish feed, which is more preferable as a fish reef. In addition to using it for fish reefs, if you float a buoy on the sea and tie the outer shell 1 with a rope etc.
It can be used as a fishing point and can be fully utilized as a fishing point.

After the component 2a is completely dissolved and flows out, the outer shell material 1
The inside is hollow and only pumice stone 2b remains. Since the pumice stone 2b has many pores like the aggregate 1a used for the outer shell 1, it can be used for purification of water as described later. In particular, since the shell 1 rolls easily, the momentum of the pumice stone 2b also increases, and the function as a filter is sufficiently fulfilled. Also, pumice stone 2b
Besides, non-ferrous metal may be used.

On the other hand, when used for purification, it is charcoal powder or sawdust carbonized as the component 2a of the core 2 and is melted out in water. Therefore, when the water in the river is polluted, carbonized powder adheres to the particles causing the pollution, and the particles are deposited on the river bottom to purify the water. Even after the entire core 2 disappears, the pumice stones and volcanic eruption rocks contained in the shell 1 have many pores, so that particles contained in water enter and are adsorbed in the pores. That is, the shell 1 having many pores can function as a filter, and the purification of water is further promoted.

In addition, when it is used for purification, the purification function is greater when about 3 to 5 pieces are installed than on the fish reef blocks 10 one by one. In this case, if the outer shell 1 is enclosed in a bag-shaped net instead of the net 15, the installation and removal can be easily performed.

As described above, if the component 2a of the core 2 contains foods, it can be used for fish reef, and if it is the component 2a for purification, it can be used for purification of river water. Therefore, during the breeding season of seafood, the fish reef block 10 shown in Fig. 4 is used.
It is advisable to install a block containing the ingredient 2a of bait in all of the above, or to use the ingredient 2a for purification in the seasons outside the fishing season. Further, if a plurality of blocks of the core 2 each having the feed and purifying components 2a are separately arranged, the river can be purified and the feed can be supplied at the same time, and an efficient fish reef can be constructed.

Instead of being installed in the fish reef block 10 of FIG. 4, it can be installed in any place of the river as long as it has a restraint means that the outer shell 1 does not flow away.

FIG. 6 shows an example of another block.

In this example, instead of the spherical shape shown in FIGS. 1 and 2,
The outer shell material 1 has a cylindrical shape. An elongated cylindrical core 2 is enclosed in the outer shell 1 and the core 2
A plurality of holes 1c are opened toward. Also in this example, various components 2a of the core 2 are used for bait and for purification, and in the illustrated example, the core 2 is filled with pumice stone 2b.

Even if the block of the outer shell material 1 formed into a cylindrical shape as described above, after being put into a river, the components of the core 2 from the hole 1c
2a naturally flows out and can be used to feed seafood and purify river water.

In addition, in the above-mentioned embodiment, although it was explained as a fish reef for rivers or for purification, if it is provided with a purification inclusion as the component 2a of the core 2, it can be sufficiently utilized also for a general septic tank.

[Effect of device]

As described above, in the present invention, the bait or purifying component in the core enclosed in the outer shell is naturally released from the hole. Therefore, as in conventional fish reefs, by proactively feeding beyond the function of nests of seafood, the breeding and growth of the seafood can be promoted, and the securing of the catch amount is compensated. Further, even when it is used for purification, it is not necessary to provide a special filter structure if the outer shell member contains stones with many pores as an aggregate, which is advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the block structure of the present invention, FIG. 2 is a perspective view with a part cut away, FIG. 3 is a view for explaining the composition and surface shape of the shell material, and FIG. 4 is a fish reef block. FIG. 5 is a plan view showing an example in which the block of the present invention is installed in a row, FIG. 5 is a sectional view taken along the line II of FIG. 4, and FIG. 6 is another example of the block structure. . 1: Outer shell material, 1a: Aggregate 1b: Filler, 1c: Hole 2: Core, 2a: Component 2b: Pumice stone 10: Fish reef block, 11: Space part 12: Notch, 13: Holding hole 14: Holding rod, 15: Net

Continuation of the front page (56) Reference JP-A-51-92569 (JP, A) JP-A-55-111898 (JP, A) JP-A-63-310696 (JP, A) Actual development Sho-60-41160 (JP , U) Japanese Patent Publication Sho 62-24569 (JP, B2)

Claims (1)

[Scope of utility model registration request] 1. An outer shell material obtained by solidifying and forming an aggregate such as pumice using mortar as a filler, and a core integrally enclosed in a hollow portion of the outer shell material, wherein the core is made of a water-soluble bait. It is formed by a component and a pumice stone with a high porosity, and a hole through which this component can spontaneously flow out is provided in the outer shell material, and the pumice stone that remains in the cavity of the outer shell material after flowing out of the component flows through the hole. A concrete block structure used for purification of fishing reefs or purification, characterized by being used as a purification material for water.