JPH10114933A - Water channel cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the function, by bending a corrugated steel plate to a specified direction to form a semicylindrical shape and connecting these plates to each other along a water channel while overlapping the ends. SOLUTION: A water channel cover is composed of a plurality of corrugated steel plates 1 bent to the crossing direction at right angles against the corrugated direction to form a semicylindrical shape. Flanges 1A are formed at both breadthwise ends. When these plates are installed, these steel plates 1 are arranged along the water channel 2 to mutually overlap the ends and fixed with bolts 4 on the side wall 3 of the water channel 2. When necessary, a handle is attached to the steel plate 1 to easily open the steel plate 1 after the bolts 4 have been removed at the inspection thereof. In this way, since a sufficient strength can be secured, the deformation is prevented even when one stands thereon. And since there is no opening, dust and sand are prevented from penetrating into the water channel. And as the cover does not easily get out of place, falling accidents into the water channel can be prevented and also it can be easily constructed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for a waterway, and more particularly, to a waterway cover having sufficient strength, which can surely prevent inflow of earth and sand and dust and fall of a person into the waterway, and easily. The present invention relates to a waterway lid that can be constructed.

[0002]

2. Description of the Related Art For example, an agricultural water channel is constructed of concrete so that a predetermined amount of agricultural water can be reliably sent to a target agricultural land. Such waterways are generally open at the top. In a waterway having an open upper portion, various kinds of dust such as earth and sand, tree branches, dead leaves, empty cans, and household dust flow into the waterway. When earth and sand and dust enter the waterway, the waterway is buried and the flow of water is obstructed, and a predetermined amount of water may not be sent to the target farmland.

[0003] In addition, when earth and sand and dust enter the agricultural land, there is a possibility that the agricultural products will be greatly damaged. Furthermore, when the size of a waterway becomes large, the amount of flowing water is large and the flow is fast, so that when a child falls into such a large waterway, a serious accident may occur.

Therefore, Japanese Utility Model Laid-Open Publication No. 59-23794 discloses a waterway cover in which a wire frame is stretched over a lightweight frame fixed over the waterway. Less than,
This waterway cover is referred to as conventional technology.

[0005]

However, the above-mentioned prior art has the following problems. Small dust and dirt such as dead leaves enter the waterway through the wire mesh. Since it is composed of a lightweight frame and a wire mesh, the strength is low. Because of this, if a person rides on the cover,
The wire mesh is easily deformed. The wire net once deformed is almost always left as it is, and the appearance is significantly impaired. Moreover, since the wire mesh is easily detached from the frame, there is a risk that a person falls into the waterway from a gap between the wire mesh and the frame. Since it is necessary to fix the wire mesh to the frame one by one, it takes time to build.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a water channel which has sufficient strength, can surely prevent inflow of earth and sand and dust into the water channel and fall of a person, and can be easily constructed. It is to provide a lid for use.

[0007]

According to the first aspect of the present invention,
A waterway lid for covering the waterway by straddling and fixing the waterway on the side wall of the waterway, and thus preventing inflow of earth and sand and trash into the waterway and falling down of the water, in a direction perpendicular to the corrugated direction. A plurality of corrugated steel plates bent into a semi-cylindrical shape in the direction in which the corrugated steel plates overlap each other along the water channel and are joined together (the steel plates to be formed have a corrugated circumference). Only wraps the ends in the direction), and is fixed on the side wall of the channel.

The invention according to claim 2 is characterized in that, at both ends in the width direction of the corrugated steel sheet, flanges which are bolted on the side walls of the water channel are formed.

A third aspect of the present invention is characterized in that a handle is attached to one of the plurality of corrugated steel sheets.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a waterway cover according to an embodiment of the present invention. 1 is a plan view showing a waterway cover of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a sectional view taken along line BB of FIG. 1, and FIG. FIG. 5 is a partial plan view showing a case where a waterway cover is installed in a waterway, FIG. 5 is a front view showing the waterway cover of the present invention with a handle attached, and FIG. FIG.

As shown in FIGS. 1 to 4, the lid for a waterway according to the present invention comprises a plurality of corrugated steel sheets 1 which are bent into a semi-cylindrical shape in a direction perpendicular to the corrugated direction. Flanges 1A are formed at both ends in the width direction of the corrugated steel sheet 1. As shown in FIG. 4, the plurality of corrugated steel sheets 1
Are fixed on the side wall 3 of the water channel 2 by bolts 4.

As described above, since the corrugated steel sheet 1 is curved in a semi-cylindrical shape, it has a sufficient strength. Therefore,
Even when a person rides on the lid, the lid does not deform. In addition, since the lid has no opening, not only large dust but also small dust and earth and sand do not enter the waterway 2. Furthermore, the lid cannot be easily removed since it is fixed on the side wall 3 of the channel 2 by bolts. Therefore, there is no danger of a person falling into the waterway, and the structure can be easily constructed.

When it is necessary to open a part of the lid for inspection of the water channel 2, as shown in FIGS. 5 and 6, at least one of a plurality of corrugated steel plates 1 (in this example, The handle 5 is attached to the black portion), and the bolt 4 is removed at the time of inspection so that the corrugated steel plate 1 can be easily opened.

[0014]

As described above, according to the lid for a waterway of the present invention, a plurality of semi-cylindrical corrugated steel sheets which can be bolted to the side wall of the waterway can be used for various industrial applications as follows. A more useful effect is brought about. Not only large trash but also small trash and earth and sand do not enter the waterway. High strength because it is made of a semi-cylindrical corrugated steel plate. For this reason, even if a person rides, there is no deformation. Moreover, since the corrugated steel plate is bolted to the side wall of the waterway, it does not come off easily, so there is no danger of a person falling into the waterway, and it can be easily constructed. By attaching the handle to the outer surface of the corrugated steel plate, the corrugated steel plate can be easily opened when checking the waterway.

[Brief description of the drawings]

FIG. 1 is a plan view showing a waterway cover according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a partial plan view when a waterway is provided with the waterway lid of the present invention.

FIG. 5 is a front view showing a waterway lid of the present invention, with a handle attached.

FIG. 6 is a side view showing a waterway lid according to the present invention with a handle attached.

[Explanation of symbols]

 1: Corrugated steel plate 1A: Flange 2: Water channel 3: Side wall 4: Bolt 5: Handle

Claims (3)

[Claims] A waterway lid for covering the waterway by fixing the waterway on the side wall of the waterway over the waterway, thus preventing inflow of earth and sand and dust into the waterway and falling of a person, It consists of a plurality of corrugated steel plates bent into a semi-cylindrical shape in a direction perpendicular to the corrugated direction, and the corrugated steel plates are overlapped and joined along the waterway and fixed on the side wall of the waterway. A lid for a waterway, characterized by being made. 2. The waterway cover according to claim 1, wherein flanges are formed at both ends in the width direction of the corrugated steel sheet so as to be bolted on the side walls of the waterway. 3. The waterway lid according to claim 1, wherein a handle is attached to at least one outer surface of the plurality of corrugated steel sheets.