JP2022059227A - Water channel cover - Google Patents

Abstract

To provide a water channel cover which can be attached to an existing water channel afterward and which can be put without a damage.SOLUTION: A water channel cover comprises: a fastening tool 2 including a substantially U-shaped clamping/gripping portion 24 clamping a water channel wall 101 of an existing water channel 100, a shaft portion 23 fastened to the clamping/gripping portion 24, and a pressing plate 21 rotatably attached to the shaft portion 23; and a cover 1 attached to the fastening tool 2.SELECTED DRAWING: Figure 1

Description

The present invention relates to a waterway lid that can be retrofitted to an open channel.

Open channels are generally used for agricultural canals, and a certain amount of water flows regardless of the seasons. In recent years, in this agricultural waterway, there have been a series of fall accidents of elderly people who came to see the state of the waterway, so it is necessary to call attention to the waterway and to cover the waterway. Is also of great interest.
When a lid is put on an open waterway, a concrete lid or a grating lid is often hung so that it can cross over the waterway. However, in order to install the above lid, the lid can be fitted to the top end of the waterway. It is necessary to provide a step as shown in the above, or to drive an anchor bolt into the top end of the waterway as shown in Document 2.

Further, the mainstream method of removing the waterway lid is to grab both ends of the lid and lift it, but a lid as shown in Document 1 in which a hinge is provided to open and close the lid has also been proposed.

Utility model registration No. 303474 Public practical use No. 49-74032

However, the location where the lid is installed is often decided in advance at the design stage, and if the lid is to be retrofitted after construction of the waterway, it is necessary to modify the waterway body as described above, reducing the strength of the waterway body. There was a risk that it would end up.

In view of the above circumstances, it is an object of the present invention to provide a waterway lid that can be installed without damaging an existing waterway.

A fixture provided with a substantially U-shaped grip portion that sandwiches the channel wall of an existing water channel, a shaft portion fixed to the grip portion, and a holding plate rotatably attached to the shaft portion. It is characterized by having a lid attached to the fixture.

One tip of the gripping portion is characterized by having a bent portion bent outward.

According to the first aspect of the present invention, by installing a fixture having a substantially U-shaped grip portion so as to be fitted to the top end of the existing waterway, the existing waterway can be retrofitted with a lid without damaging the existing waterway. You can make a hook. Further, since the holding plate to which the lid is attached by the connecting tool is connected to the shaft portion, it can be rotated on the water channel with the shaft portion as the rotation axis. Therefore, the lid hung on the water channel can be rotatably moved around the shaft as a rotation axis by lifting the end that is not connected to the fixture, and lifts both ends like a conventional lid. You don't have to remove it.

According to the second aspect of the present invention, since one end of the gripping portion is bent outward, it serves as a guide for smoothly fitting the gripping portion into the water channel wall.

It is a schematic diagram when the lid for a waterway of this invention is installed in a waterway. It is a schematic diagram which shows the state which the lid for a waterway of this invention is opened. The fixture of the waterway lid of the present invention, (a) is a perspective view of the fixture, and (b) is a view showing how to install the fixture on the waterway wall.

Hereinafter, examples of the waterway lid of the present invention will be described in detail.
The waterway lid in the embodiment is a waterway lid that is hung so as to cover the waterway 100 as shown in FIGS. 1 and 2. Expanded metal is used as the material of the lid 1.

As shown in FIGS. 3A and 3B, the fixture 2 includes a gripping portion 24 having a substantially U-shaped outer shape that is turned upside down. By making the inner width slightly narrower than the thickness of the water channel wall 101, when the gripping portion 24 is fitted into the water channel wall 101, the sandwiched water channel wall 101 is sandwiched by the elasticity of the gripping portion 24 so as to be tightened. Further, at one end of the gripping portion 24, a bent portion 25 bent toward the outside is provided, which serves as a guide for reliably fitting the gripping portion 24 into the water channel wall 101.
A shaft portion 23 is connected to the upper surface of the pinching portion 24 by welding so as to follow the member width direction of the pinching portion 24. A holding plate 21, which is a substantially rectangular metal plate, is attached to the shaft portion 23 via a hinge 26 so as to be rotatable in the direction of the arrow in FIG. 3A. The holding plate 21 is provided with a bolt hole 22 through which a bolt 4 is inserted in order to attach the lid 1. By aligning the position with the hole of the expanded metal used in the lid 1, the holding plate 4 can be held. It can be attached to the 21 and the lid 1 and the lid 1 can be fixed to the holding plate 21.

The procedure for installing the waterway lid having the above configuration in the existing waterway 100 will be described.
First, two fixtures 2 and 2 are installed on the water channel wall 101 according to the length of the lid 1 so that the shaft portion 23 is outside the water channel 100. At this time, it is preferable to hit the water channel wall 101 with a mallet or the like so that the gripping portion 24 firmly sandwiches the water channel wall 101.
Next, the lid 1 is placed on the water channel 100 so as to be aligned with the positions of the fixtures 2 and 2 previously installed and to be sandwiched between the holding plate 21 and the gripping portion 24. The bolt 4 is inserted into the bolt hole 22 of the holding plate 21, and the lid 1 is fixed to the holding plate 21 with the washer 3 and the nut 5.
When installed in a wide water channel, the lid 1 may be bent, so a square pipe may be attached to the long side of the lid 1 to support it.

The waterway lid of the present invention configured in this way does not require a separate fixing device such as an anchor bolt for the existing waterway to be installed, and the waterway wall is formed by the pinching portion 24 of the fixing tool 2. All you have to do is to sandwich and fix the 101. Therefore, it does not take time to attach the lid 1, the waterway can be quickly covered, and the cost at the time of construction can be kept low, which is excellent in economy. In addition, since the existing waterway is not damaged, the strength of the waterway is not impaired, and there is no risk of damage to the waterway due to the construction of the lid.

Further, by making the lid 1 rotatable on the water channel 100, the lid can be opened more easily than the conventional fitting type lid. Therefore, it becomes easy to clean the mud and the like accumulated on the bottom of the waterway, and the maintenance of the waterway becomes easier.

Further, the waterway lid of the present invention uses bolts 4 and nuts 5 for connecting the fixture 2 and the lid 1, and is directly assembled at the place where it is installed. Therefore, since it can be easily disassembled, it can be made compact to some extent and carried. Moreover, since the waterway lid of the present invention has few welded portions, there is little possibility that deterioration due to rusting from the welded portions will occur.

The waterway lid of the present invention is not limited to the above embodiment, and can be appropriately changed within the scope of the claims. For example, the material of the lid 1 may be plastic or the like having the same strength instead of the expanded metal.

1 Closure 2 Fixture 21 Holding plate 22 Bolt hole 23 Shaft part 24 Holding part 25 Bending part 26 Hinge 3 Washer 4 Bolt 5 Nut 100 Waterway 101 Waterway wall

Claims (2)

A fixture provided with a substantially U-shaped grip portion that sandwiches the channel wall of an existing water channel, a shaft portion fixed to the grip portion, and a holding plate rotatably attached to the shaft portion. ,
A waterway lid comprising a lid attached to the fixative. The waterway lid according to claim 1, wherein one end of the gripping portion includes a bent portion that is bent outward.

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