JP2577712Y2 - Fishway mount - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishway rack that can move along a fishway constituted by fishway blocks.

[0002]

2. Description of the Related Art There have been various definitions of fishways since ancient times. In recent years, however, there has been a description of "weirs that are provided across rivers and hinder the movement of fish, Reducing the obstacles to structures such as head works and dams,
Waterways or devices installed for removal ".

[0003] There are various types of fishways, and the conventional fishways are all constructed so as to bypass the side of the weir or to bypass the side of the weir. This could not be moved.

[0004]

As a result, sediment or driftwood contained in the water flowing over the weir or the like accumulates on the fishway, and even if it does not accumulate on the fishway, it accumulates on the riverbed. The flow environment that forms the entrance to the fishway has changed, thus making fishway management difficult.

[0005]

In order to solve the above-mentioned problems, a fishway block according to the present invention has a fishway block for fitting a plurality of short fishway blocks onto an upper surface of a frame body. A receiving portion is formed, and a leg portion is formed on the lower surface of the gantry body.

[0006]

In other words, the entire fishway formed by the fishway block fitted into the gantry body can be moved to another place in that state.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fishway stand according to the present invention will be described with reference to the drawings. Reference numeral 1 denotes a fishway main body formed of concrete or steel, and the fishway main body 1 is a pool type or a waterway type. It does not matter. However, the fishway main body 1 is formed in a block shape having an appropriate length, that is, a plurality of fishway blocks 2 are continuously provided.

Reference numeral 3 denotes a gantry body having a stepped fishway block receiving portion 4 formed on the upper surface and a frame formed with legs 5 on the lower surface. The fishway block receiving portion 4 is inclined as a whole. It is formed on the surface.

The gantry body 3 may be a long one as a whole, but a plurality of gantry bodies may be required depending on a place where the gantry body 3 is to be installed. That is, the fishway block 2 is placed in the fishway block receiving portion 4 of the gantry body 3 so as to fit therein.
Where the lowest part of the sloping fishway block receiver 4 is the fishway entrance, this fishway entrance is selected in the river, for example, in a place where many fishes will gather,
In addition, it is necessary to set the highest portion to reach the upstream of the weir, so that one gantry body 3 may not be able to cope sufficiently. Therefore, a plurality of gantry bodies 3 are actually used. Therefore, in the drawings showing the present embodiment, three gantry bodies 3 are shown, and in the present embodiment, three gantry bodies 3 having different heights are used.
This will be described using the gantry body 3.

That is, these three gantry bodies 3 are arranged in a zigzag manner in a plan view and a side view, and the highest inclined surface of the central gantry body 3b is the same as the lowest inclined surface of one gantry body 3a. The height of the lowest inclined surface of the gantry body 3b is substantially equal to the highest inclined surface of the gantry body 3c on the other side, and is a continuous inclined surface as a whole.

[0011] Then, the portions where the heights are almost the same,
That is, the ends are connected by the small fishway block 6, and the fishway block 2 is fitted into the remaining fishway block receiver 4, thereby forming a zigzag fishway that is continuous as a whole.

When the plurality of gantry bodies 3 are connected in series, the inclined surface of the fishway block receiving portion 4 is a continuous inclined surface.

When the legs 5 are formed so as to cover almost the entire width and the entire length of the gantry body 3 as shown in FIG.
And as shown in FIG. 5, when formed relatively small,
Although the shape is arbitrary, in any case, positioning of the specific height of the gantry body 3 is performed by, for example, an adjustment jack 7 (height adjusting device) provided on the leg 5 and The number of the main bodies 3 is not limited to the three.

The gantry body 3 is movably installed on the riverbed, so that the gantry body 3 can be moved together with the fishway block 2 fitted therein.

[0015]

As described above, according to the fishway stand according to the present invention, a fishway block receiving portion for fitting a plurality of short fishway blocks is formed on the upper surface of the stand body. Since the legs are formed on the lower surface of the gantry main body, the whole fishway formed by the fishway block fitted into the gantry main body has an effect of being able to be moved to another place in that state.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a fishway stand according to the present invention.

FIG. 2 is a front view showing an embodiment of a fishway stand according to the present invention.

FIG. 3 is a side view showing an embodiment of a fishway stand according to the present invention.

FIG. 4 shows three gantry bodies individually, (1) is a front view of a gantry body 3a, and (2) is a gantry body 3b.
(3) is a front view of the gantry body 3c.

FIG. 5 is another example showing three gantry bodies individually, wherein (1) is a front view of the gantry body 3a, and (2) is a gantry body 3b.
(3) is a front view of the gantry body 3c.

[Explanation of symbols]

 Reference Signs List 1 fishway main body 2 fishway block 3 gantry body 3a gantry body 3b gantry body 3c gantry body 4 fishway block receiving part 5 legs 6 small fishway block 7 adjustment jack

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E02B 8/08

Claims (5)

(57) [Scope of request for utility model registration] 1. A fishway block receiving portion for fitting a plurality of short fishway blocks is formed on an upper surface of a gantry body, and legs are formed on a lower surface of the gantry body. Fishway mount 2. The fishway stand according to claim 1, wherein the fishway block receiving portion has an inclined surface. 3. When the plurality of gantry bodies are connected in series, the inclined surface of the fishway block receiving portion is an inclined surface that is continuous in the upstream and downstream directions in the fishway block. Fishway mount. 4. When the plurality of gantry bodies are connected in a zigzag shape, the inclined surface of the fishway block receiving portion is an inclined surface continuous in the upstream and downstream directions in the fishway block.
Or the fishway mount according to claim 2. 5. The fishway mount according to claim 1, wherein a height adjusting device is provided on the leg portion.