JP2548559Y2 - Simple fishway equipment - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple fishway device which can be easily installed on an existing weir without a fishway.

[0002]

2. Description of the Related Art Conventionally, dams and weirs provided in rivers are used for flood control, water use in reservoirs, and the like. In recent years, some dams and weirs that have been designed and constructed have a fishway attached to maintain the ecosystem of fish. In the fishway, a long waterway from the upstream to the downstream is provided by a concrete wall, bypassing the dam and weir, and a plurality of concrete or steel plate dams are gradually added to the waterway in a stepwise manner. Some have been installed.

The fishway device 1 shown in FIG. 7 is provided in a water channel 3 provided with a fixed weir 2 and has a wooden trough 4 having a rectangular cross section.
Are assembled spirally, and are adjusted to the height of the fixed weir 2. The upstream end of the gutter 4 is disposed in the overflow weir section 5 of the fixed weir 2 and is fixed at this location, so that the installation work is relatively easier than that described above. In addition, it can be attached during the upstream and downstream stages of fish, and can be dismantled after the period.

[0004]

In the fishway device 1 described above, since the mounting work is performed according to the shape of the fixed weir 2, there is no versatility, and the material is procured each time, so it is expensive.

An object of the present invention is to provide a simple fishway device that can be assembled and removed.

[0006]

According to the present invention, in order to achieve the above object, the bottom plate is doubled and the priming channel is formed at the bottom.
Gutter-shaped waterway blocks and box-shaped folded
A box-shaped first folded block is provided at one end of the gutter-shaped first waterway block with a telescopic member and connected via a hinge, and the first folded block is connected to the first folded block. One end of the second waterway block is connected in parallel with the waterway block of the second waterway block with an elastic member, and connected via a hinge, and the second or more folded block and the third or more waterway block are sequentially attached to one side, One end of the last-stage waterway block is connected to the last-stage folded block with an extendable member and connected via a hinge, and the last-stage waterway is connected.
The drain port of the priming water channel section of the block is
It is directed to the outlet of the waterway block at the downstream end .

[0007]

Since the fishway device of the present invention is constructed as described above, if the tip of the first channel block is fixed to the top of the fixed weir and provided downstream of the fixed weir, the first A turn block is located downstream. In addition, the second waterway block extends to the upstream side. Then, when the plurality of folded blocks are sequentially placed low, the plurality of waterway blocks are sequentially inclined by the hinge and the elastic member, and a waterway is formed by the blocks from the upstream side to the downstream side of the fixed weir.

In this assembling process, a priming waterway is formed to support fish running up . In addition, since the plurality of waterway blocks are arranged in order on one side on a plane, it is easy to handle.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1 to FIG.
Is to double the bottom plate and form the priming water channel section 22 at the bottom.
A plurality of trough-shaped waterway blocks 6 (6 a, 6 b, 6 c) are connected to each other and inclined from the overflow weir portion 5 of the fixed weir 2 to the downstream side of the waterway 3. A box-shaped folded block 7 having a double bottom plate and a priming water channel portion 22 formed at a lower portion is connected to the connecting portion. The waterway block 6 can be separated for each of the waterway blocks 6a, 6b, 6c,..., And the partition walls 8 can be attached to the inside of the waterway block 6 at appropriate intervals. In addition, waterway block 6
An auxiliary block 9 for adjusting the length or the inclination angle of the waterway block 6 according to the weir height is slidably provided along the outer peripheral surface of the waterway block 6. A watertight rubber 10 is attached to the outer peripheral surface of the auxiliary block 9.

[0010] connection between the waterway block 6 and the folded block 7, bellows-shaped elastic member 11 is interposed, also priming
The connecting portion of the water channel portion 22 is connected by a bellows member 23
(See FIG. 4). Further, a hinge 12 is arranged on the inner corner side bent by the waterway block 6 and the turnback block 7.
The plurality of folded blocks 7 are fixed to a pedestal 15 fixed to the riverbed 13 with anchor bolts 14, and the height is reduced in order. That is, the hinges 12 are attached to the lower part on the upstream side and the upper part on the downstream side of the waterway block 6. In addition, engaging portions 16 and hooks 17 are attached to side surfaces of the waterway block 6 and the turnback block 7 as shown in FIG.

[0011] Next, a fishway device 1 in the accommodated state with reference to FIGS. The fishway device 1 is configured such that the first waterway block 6a, the second waterway block 6b, and the third waterway block 6c are parallel, and the first folded block 7a and the second folded block 7b are both parallel. It is designed to be fixed on a plane. An intermediate plate is inserted into the gap between the waterway block 6 and the turnback block 7 facing sideways and fastened with a band 19 or a bolt, and a hook 17 is hung on the engaging portion 16 and fixed. . A blind lid 20 is attached to the upstream port and the downstream port of the waterway block 6.

When the fishway device 1 is installed on the fixed weir 2, the compact fishway device 1 is transported by a truck or the like and operated by a crane. First, the pedestal 1 is located downstream of the fixed weir 2.
5 is fixed at a predetermined position. The height of the cradle 15 is determined in consideration of the conditions of the installation location and the gradient required by the fish. In addition, in order to prevent outflow at the time of increasing water, it is securely fixed with anchor bolts 14. Next, the first waterway block 6a and the first folded block 7 of the fishway device 1 suspended by the crane are erected on the overflow weir 5 and the pedestal 15 with the blind lid attached. Here, the load of the crane is reduced.

[0013] Next, the second water channel block 6b, placed on the third waterways block 6c is lowered in order cradle 15, after adjusting the auxiliary block 9, to fix the respective parts. other than this,
Although the fishway device 1 shown in FIG. 1 is provided with three waterway blocks 6, it can be further added. In addition, the fishway device 1 having three waterway blocks 6 can be connected and used. In addition, in one fishway device 1, the waterway block 6 can be continuously connected to the width which can be accommodated in the carrier of the transport truck.

After the fishway device 1 is fixed to the downstream side of the fixed weir 2, the water flows through the waterway of the fishway device 1 by removing the blind lid 20. There is a certain overflow depth at the top of the weir, which allows fish to go up and down at the time of overflow.

When the fishway device 1 is detached, the operation is easy if the above procedure is reversed. In addition, in the case of water transportation, it is also possible to keep the blind lid 20 attached to the upstream port and the downstream port of the waterway block 6 and tow as a floating body.

Next, priming water passage 22 of the fishway system 1 Nitsu
Will be described. As shown in FIG. 7, a fixed weir portion 5 of the weir 2 is wider the inlet than the width of the channel block, overflow as side plate 21 which is connected to the upstream end to increase the inflow of the auxiliary block 9 It is provided along the side wall of the weir portion 5.
In addition, as shown in FIG.
A screen 25 is attached to 4.

As shown in FIG . 8, a priming water channel portion 22 provided in the water channel block 6c is folded outward near the downstream end, disengages from a lower portion of the water channel block 6c, and is disposed on a side portion of the water channel block 6c. The drain port 26 of the part 22 is
7 to the outlet of the waterway block 6c. A screen 25 is also provided at the drain 26. Ma
In addition, as shown in FIG.
A double bottom plate is also provided, and a priming water channel 22 is provided below the bottom plate.
The bellows member 23 connects the connecting portions. This
As described above, since the priming waterway section 22 is integrated with the waterway block 6, the fishway device 1 having a priming function that supports the ascent of fish by normal assembly work can be installed.

[0018]

[Effects of the Invention] The present invention is constructed as described above, so that it can be installed in the water channel on the downstream side of the fixed weir. In addition, since the fishway device can be folded flat, it can be easily removed and carried, and can be attached to an existing weir without a fishway. In the assembly process, fishway
The priming channel is created at the same time when the
Can be constructed without the need to separately manufacture waterways
And the number of parts during transportation also decreases,
Be easy.

[Brief description of the drawings]

FIG. 1 is a side view of a fishway device according to an embodiment of the present invention.

FIG. 2 is a plan view of the fishway device shown in FIG.

FIG. 3 is a front view of the fishway device shown in FIG. 1;

4 is an essential part side view showing a connecting portion of a waterway block of the fishway device shown in FIG. 1;

FIG. 5 is a plan view showing a folded state of the fishway device shown in FIG. 1;

FIG. 6 is a side view showing the fishway device shown in FIG. 1 in a folded state.

FIG. 7 is a plan view on the upstream side of the fishway device shown in FIG . 1 ;

FIG. 8 is a plan view on the downstream side of the fishway device shown in FIG . 1 ;

9 is a side view of an intermediate portion of the fishway system shown in FIG.

FIG. 10 is a side view of the fishway device shown in FIG . 1 on the downstream side.

FIG. 11 is a front view of the upstream side of the fishway device shown in FIG . 1 ;

FIG. 12 is a side view on the downstream side of the fishway device shown in FIG . 1 ;

FIG. 13 is a front view of the downstream side of the fishway device shown in FIG . 1 ;

FIG. 14 is a perspective view of a conventional fishway device.

[Explanation of symbols]

 Reference Signs List 6 waterway block 6a waterway block 6b waterway block 6c waterway block 7 folded block 7a folded block 7b folded block 7c folded block 11 telescopic member 12 hinge 22 priming waterway 27 rectifying plate

Claims (1)

(57) [Scope of request for utility model registration] (1) The bottom plate is doubled and the priming water channel is located at the bottom.
Multiple formed gutter-like channel blocks and box-shaped turns
A box-shaped first folded block is connected to one end of a gutter-shaped first channel block by an extendable member and connected via a hinge, and the first folded block is connected to the first folded block by the first folded block. One end of the second waterway block is connected in parallel with the waterway block of the second waterway block by an elastic member, and is connected via a hinge.
The above-mentioned folded block and the third or more waterway block are sequentially attached to one side, and one end of the last-stage waterway block is connected to the last-stage folded block with an extendable member and connected via a hinge, and Priming water for the waterway block
The drain of the channel is connected to the channel block at the downstream end via a straightening plate.
A simple fishway device directed to the outlet of the fish.