JP2002357470A - Water level meter for measurement by looking from right above - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water level meter enabling measurement of a water level by looking from right above without bending forward for easily measuring the water level of an area of river, lake and the like below from the height such as a position on a bank and a bridge. SOLUTION: A scale 3 is arranged on the side face of a rod type gauge 2, and the rod type gauge 2 is installed slantingly to a side wall 1 of the bank or the bridge while the side face carrying the scale 3 upward so that the scale 3 arrangement side face is directed upward, that is, toward an observer 5 on the bank or the bridge in measurement of the water lever from the bank or the bridge. Since the rod type gauge 2 is installed slantingly, an actual scale 3 interval is set to be longer than an indicated numerical value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The water level can be measured from directly above without leaning forward, and the water level of a water area such as a river or a lake located below from a high place such as on a dike or a bridge can be easily measured. To provide a water level gauge that can be measured.

[0002]

2. Description of the Related Art Conventionally, a scale (3) is provided on a side wall (1) of a dike, a bridge girder or the like.

In some cases, a pile or the like provided with a scale (3) is provided in a river or a lake.

[0004]

It was very difficult to read from directly above. In addition, it was necessary to look forward and look at it, and there was a risk of falling into rivers and lakes.

[0005] Piles provided with scales (3) need not only be strong enough to withstand water flow, but also very strong so as to withstand collision with drifting objects. was there. In addition, it was very dangerous because it could collide with a ship.

[0006] When the water is inclined or bent, the water level cannot be measured accurately.

Further, the scale (3) is difficult to read because the scale is not located immediately below the measurer (5) but farther than the measurer (5).

[0008]

A scale (3) is provided on a side surface of a bar-shaped ruler (2), and the side on which the scale (3) is provided faces upward, and the bar-shaped ruler (2) is placed on a side wall such as an embankment or a bridge girder. It is characterized in that it is attached obliquely to (1), and the side face provided with the scale (3) faces upward.

That is, when measuring the water level from above the embankment or bridge, the side provided with the scale (3) faces toward the measurer (5) on the embankment or bridge, so that the measurer ( 5) It is easy to read the scale (3).

Moreover, since the scale (3) can be read from directly above, there is no need to lean forward.

However, since the bar-shaped ruler (2) is attached diagonally, the scales (3) are provided at intervals longer than the numerical values shown, and are provided so that the numerical value indicated by the scale (3) matches the water level.

For example, the shape of the bar-shaped ruler (2) is straight and inclined from the vertical line by θ (0 ° <θ <90 °), that is, the angle formed between the bar-shaped ruler (2) and the vertical line is θ. If the numerical value between the scales (3) described above, that is, the numerical value indicated by one scale (3) is a (a> 0), Equation 1 (θ (0 ° <θ <90 °) in the formula) Is an angle formed between the bar-shaped ruler (2) and the vertical line. A (a> 0) is a numerical value indicated by one scale (3).) The scales (3) are provided. In addition, it is Formula 2.

[0013]

(Equation 1)

[0014]

(Equation 2)

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the present invention, since a rod-shaped ruler (2) is attached to a side wall (1) of a dike, a bridge girder or the like, there is no possibility of collision with a ship or the like. In addition, even if it is attached to the side wall (1) so that it does not come off from the side wall (1) even when it comes into contact with a drifting substance or the like, it is possible to avoid tilting or bending in a direction different from the attached state.

The bar-shaped ruler (2) may be a plate-shaped ruler.

In this case, one end edge is attached to the embankment or the side wall (1) of the bridge girder. Since the scale (3) is provided on a wide plate-like surface, the scale (3) is easy to read.

In the figure, the bar-shaped ruler (2) has a triangular cross section, and a scale (3) is provided on one side surface of the bar-shaped ruler (2) forming one side thereof.
One of the two side surfaces other than the side surface provided with is attached to the side wall (1) by adhesion.

In the above case, when the side wall (1) is on a vertical surface, the scale (3) can be obtained by providing the side face to be bonded to the side wall (1) and the side face provided with the scale (3) at right angles. The shape of the projection unit formed by projecting in the direction of the horizontal line on the side surface provided with is linear.

The triangle of the cross-sectional shape of the rod-shaped ruler (2) is a right angle in which one side formed by the side surface adhered to the side wall (1) and one side formed by the side surface provided with the scale (3) are perpendicular to each other. It is a triangle.

When the side wall (1) is on a plane but not on a vertical plane, the side surface bonded to the side wall (1) and the side surface provided with the scale (3) are perpendicular to the side wall (1). If it is provided at an angle shifted from the surface, the shape of the projection portion formed by projecting in the direction of the horizontal line on the side surface on which the scale (3) is provided is linear.

The present invention can also be used for measuring cups and the like.

When the rod-shaped ruler (2) is attached obliquely to the side wall (1) of the measuring cup or the like, it can be measured from directly above. Therefore, when pouring water or the like into the measuring cup or the like, do not look from the side. Watch only from directly above.

Therefore, the scale (3) and the opening can be viewed almost simultaneously without changing the position of the face, and it is easy to pour a necessary amount of water or the like without spilling.

When the side wall (1) of the measuring cup or the like is not flat, the shape of the rod-shaped ruler (2) is adjusted to the shape of the side wall (1) of the measuring cup or the like.

For example, when the shape of a measuring cup or the like is a cylinder,
The shape of the rod-shaped ruler (2) is spiral.

[0027]

According to the present invention, the scale (3) can be read from directly above, and the water level in the water area below the embankment or on the bridge can be easily measured without leaning forward. Also, it is safe because you do not need to look forward.

[0028] Unlike a stake or the like having a scale (3),
There is no danger of colliding with a ship, etc., and it is different from the attached state as long as it is attached to the side wall (1) so that it does not peel off even if it hits a floating object etc. It is possible to avoid tilting and bending.

Therefore, it is possible to avoid that an accurate water level cannot be measured. It is also inexpensive.

Compared with a pile, etc., the measurer (5) and the scale (3)
Since the distance to is short, the scale (3) can be read accurately.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of the present invention.

FIG. 2 is a front view showing an example of the present invention.

FIG. 3 is a side view showing an example of the present invention.

FIG. 4 is a side view showing a use state of the present invention.

[Explanation of symbols]

 1. Side wall 2. Bar ruler 3. Scale 4. Water surface 5. Measurer 6. Eyes

Equation 1 a / cos θ

## EQU2 ## a / cos θ> a

Claims (5)

[Claims] 1. A water level gauge comprising a stick (2) attached diagonally to a side wall (1) of an embankment or a bridge girder, and a scale (3) provided on a side of the stick (2) facing upward. 2. A scale (3) is provided on the side surface of the rod-shaped ruler (2) at intervals longer than the numerical value indicated.
A water level gauge in which a bar-shaped ruler (2) is obliquely attached to a side wall (1) of a levee or a bridge girder so that the side surface provided with is directed upward and the water level matches the value indicated by the scale (3). 3. The water level gauge according to claim 2, wherein the angle between the bar-shaped ruler (2) and the vertical line is θ (0 ° <θ).
<90 °), and for a numerical value a indicated by one division (3), the following equation is obtained: θ (0 ° <θ <90 °) in the mathematical formula is a bar-shaped ruler (2) and a vertical line. A water level meter, wherein the scales (3) are provided at intervals of (a is a numerical value indicated by one scale (3)). 4. The bar-shaped ruler (2) has a triangular cross-sectional shape, a scale (3) is provided on one side surface of the bar-shaped ruler (2) forming one side thereof, and the other side is not provided with the scale (3). The water level gauge according to claim 2, wherein one of the two side faces is attached to the side wall (1). 5. The water level gauge according to claim 1, wherein the bar-shaped ruler (2) is a plate-shaped ruler, one end of which is attached to a side wall (1) of the embankment or the bridge girder. .