JPH035245Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a fishing reef block developed to maintain a habitat for fish and other aquatic animals within a concrete waterway.

<Conventional technology> Conventionally, in the case of concrete waterways, waterway blocks, which have irregularities such as ridges at regular intervals on the bottom surface, have the function of maintaining a water depth that allows fish to live even in times of drought. It was just doing something.

Attempts have also been made to create habitats for fish and the like by creating holes in the side walls of concrete waterways. However, because the light from natural light does not reach the depths, and during droughts, there is not enough water left in the hole, so it could not be a suitable habitat.

Fishing reef blocks can be seen in Utility Model No. 59-144037 and Utility Model No. 54-112792. What must be considered in such fishing reef blocks is the protection of fish in the event that water flow is stopped in the waterway formed by the waterway block, or the flow of water is stopped due to periods of dry water, etc. However, in either case, if the flow of water stops, all the water will disappear, and all aquatic animals will die, meaning that they will not be able to fully fulfill their purpose and function as fishing reefs.

<Problems to be solved by the invention> The main purpose of providing the protrusions on the bottom of the waterway block mentioned above was to reduce excessive flow velocity, and it did not go far enough to provide a sufficient habitat for fish. .
In other words, even in times of drought, the water remains deep enough for fish to live in, and a certain amount of aquatic plants can grow, but they are washed away by external enemies and by excessive current speeds caused by increased water levels and slopes. Therefore, there was no place for them to escape, and it also could not be a suitable breeding ground.

<Means for solving the problem> Therefore, in the present invention, in order to provide a sufficient habitat for fish etc., a waterway block with multiple protrusions provided on the bottom almost perpendicular to the direction of water flow is used to prevent water from drying out. Taking advantage of the fact that a water puddle is left even at times, the waterway block has fitting parts 12, 12 at both ends that are shaped to fit into the protrusions 5, and spans between the protrusions of the waterway block. They developed a fishing reef block that had a shape that could be covered over the corner formed by the bottom and side walls of the reef, and had a cutout or side hole in the side edge.

<Function> With a concrete waterway equipped with such a fish reef block of the present invention, there is a gap between the bottom surface 6 and side wall 7 of the water channel block and the fish reef block 9 of the present invention, which has a low flow velocity and prevents foreign enemies such as birds from entering. This creates a habitat where only fish and other species can enter and exit.

Therefore, not only during normal times, but also when the water is rising, when the flow velocity is excessive due to steep slopes, and even when attacked by external enemies, only fish and other animals can freely and safely enter and exit the area. It also allows natural light to enter the habitat.

Water accumulates between the protrusions 5, 5 even when the flow of water is stopped due to suspension of water flow, dry season, etc. Moreover, since it is provided in a fitting structure between the protrusions 5, 5, it will not be moved even by strong water currents.

<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view of a first embodiment of a fishing reef block according to the present invention, and FIG. 2 is a plan view of the same.
FIG. 3 is a right side view. Figure 4 is Figure 1 A-A
FIG. 5 is a sectional view taken along line BB.
FIG. 6 is a partially cutaway perspective view showing an example in which the present invention is fitted into a water channel block provided with a plurality of protrusions. FIG. 7 is a front view showing the second embodiment, FIG. 8 is a plan view thereof, and FIG. 9 is a side view thereof. FIGS. 10a and 10b are schematic side views showing other shapes.

In the first embodiment shown in FIGS. 1 to 6, the fishing reef block 9 consists of a ceiling surface 1 and a side surface 2, and trapezoidal side edge notches 3a, 3b are provided at the edges of the ceiling surface 1 and side surfaces 2. And, on the side surface 2, a through hole 4 is provided which vertically penetrates through the concrete. Also,
On both sides of the side surface 2, there are protrusions 5 on the bottom of the water channel block.
Fitting portions 12, 12 shaped to fit into each other and notches 10, 10 are formed adjacent to the fitting portions 12, 12. Notch 10,
10 forms a gap between the protrusion 5 and the fishing reef block 9 to facilitate the discharge of earth and sand.

Trapezoidal side edge notches 3a, 3 on ceiling surface 1 and side surface 2
b is an entrance/exit for fish, and in particular, the side edge notch 3b of the ceiling surface 1 also functions as a light into the fishing reef. Further, the through hole 4 on the side surface 2 is provided in a vertical shape to allow large fish to enter and exit. The notch 10 is made tall so as to enable cleaning inside the fishing reef, and is formed with an appropriate distance without touching the protrusion 5.

Next, in the second embodiment shown in FIGS. 7 to 9, an inclined surface 8 is further provided between the ceiling surface 1 and the side surface 2.
has been established. In this second embodiment, the ceiling surface 1
One elongated transparent hole 4 is provided in the center of the slanted surface 8, and two elongated transparent holes 4 are provided at appropriate intervals on the inclined surface 8 to provide illumination. The side surface 2 is provided with a semicircular side edge notch 3c with a large radius at the center, and semicircular side edge notches 3d with a small radius on both sides thereof.
Furthermore, the tall notch 10 for cleaning inside the fishing reef, as described above in the first embodiment, is also provided.

This side edge notch 3c provided on the side surface 2 is an entrance for large fish, and the side edge notches 3 on both sides thereof are
d is the entrance/exit for small fish.

The shape of the notch on the side edge and the through hole are not limited. Other shapes than those shown in the first and second embodiments are also conceivable.

Further, the shape of the fishing reef block is not particularly limited. Cross section L as shown in Figures 10a and b
Even if it is almost an angular shape such as a curved shape or a shape similar to a flat plate (not shown), it can be placed over the corner formed by the bottom surface 6 and side wall 7 of the water channel block 11. Any shape that can be used will suffice.

Although the fishing reef block of the present invention has created a habitat for fish and other species as described above, as can be seen in Figure 6, the reduction in the cross-sectional area for water flow is extremely small, resulting in poor water passage. The waterway's function as a waterway is not impaired.

If there is a risk that the fishing reef block of the present invention may move due to fast water flow or other causes, movement can be prevented by fixing it to the waterway block 11 with bolts or adhesive with mortar, etc. can.

Conventionally, the area surrounded by the protrusion 5 and the side wall 7 of the concrete waterway bottom 6 provided a habitat for fish, but the present product provides a habitat for fish that is most suitable for fish. Improvements were made to maintain a suitable habitat. In such fishing reef blocks, water flow is reduced, and sediment accumulates, creating an environment where aquatic plants and aquatic insects are likely to grow, and the food and fish that are generated are not washed away by excessive current speed. Provide good feeding and breeding areas.

Furthermore, if you place chestnut stones or logs inside this fishing reef, it will be more effective for aquatic plants and aquatic insects to grow there.

<Effects of the invention> As mentioned above, when the fishing reef block of the present invention is used in concrete waterways, it can be This improves the environment in which it is difficult for fish to live, without sacrificing its function as a waterway, which has the effect of protecting fish and preventing the destruction of nature.

[Brief explanation of the drawing]

FIG. 1 is a front view of a first embodiment of a fishing reef block according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a right side view. Figure 4 is A-A of Figure 1.
FIG. 5 is a sectional view taken along line BB.
FIG. 6 is a partially cutaway perspective view showing an example in which the present invention is fitted into a water channel block provided with a plurality of protrusions. FIG. 7 is a front view showing the second embodiment, FIG. 8 is a plan view thereof, and FIG. 9 is a side view thereof. FIGS. 10a and 10b are schematic side views showing other shapes. 1...Ceiling surface, 2...Side surface, 3...Side edge notch,
4...Transparent hole, 5...Protrusion, 6...Bottom surface, 7...
Side wall, 8... Inclined surface, 9... Fishing reef block, 10
... Notch, 11 ... Channel block, 12 ... Fitting part.

Claims (1)

[Scope of utility model registration request] A fitting part 12 having a shape that spans between the protrusions 5 of the water channel block 11, which has protrusions 5 provided at a plurality of locations on the bottom surface 6 at substantially right angles to the water flow direction, and fits into the protrusions 5;
12 at both ends, and the water channel block 11
1. A fishing reef block having a shape that can be overturned at a corner formed by a bottom surface and a side wall, and having a notch 3 in a side edge or a through hole 4 in a side surface.