JPH0455078Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention (a) Industrial application field This invention is intended to provide a flexible curved groove (flexible curve inner) suitable for connecting steel waterway grooves, etc.

B. Conventional technology and its problems Hokkaido has a large amount of peat soil, which is said to be one of the three major types of bad soil.For this reason, the problem of irrigation and drainage related to field maintenance projects and farm road maintenance projects is especially important when using this soil. This is related to one of the opponent's measures against soft ground.

In particular, if the water channel is made of concrete, the product may be destroyed due to frost heaving during the winter, or water may leak due to joint cuts.
Damage to facilities due to sinking due to their own weight or uneven settlement of the ground, etc., and the cost and effort required for maintenance (sinking prevention/repair work) are immeasurable. For this reason, lightweight steel waterway grooves are being offered, but progress has not been made in improving the curved grooves for small irrigation areas (called technique lines), and it takes time and effort to manufacture products while conducting on-site surveys. The reality is that we have to do such things.

B. Structure of the invention A. Means for solving the problem In order to achieve the above purpose, the invention is as follows.

That is, the thing of this application is a freely curved groove which consists of the inner curved groove body 2 and the outer curved groove body 3.

Therefore, both the inner curved groove body and the outer curved groove body have a structure in which a cylindrical side wall is connected to a disc-shaped bottom plate, and the inner curved groove body rotates within the outer curved groove body. It is freely configured.

Moreover, water channel groove receivers are provided protrudingly provided on the front surface of the inner curved groove body and the back surface of the outer curved groove body so as to communicate with the respective curved groove bodies.

Further, an opening is provided in the back surface of the inwardly curved groove body through which the water channel groove holder of the outer curved groove body can pass and move in the circumferential direction, and an opening is provided in the front surface of the outer curved groove body. has an opening through which the channel groove holder of the inwardly curved groove body can pass and move in the circumferential direction, and the bottom plate of the inwardly curved groove body and the bottom plate of the outer curved groove body are centered at the same position. They are connected with bolts that can be tightened and loosened at will.

(b) Examples of implementation of the idea Examples will be described with reference to the drawings.

Reference numeral 1 designates the freely curved groove of the present invention, which is composed of an inner curved groove body 2 and an outer curved groove body 3. The above-mentioned inwardly curved groove body 2
The inner main body 2C consists of a circular bottom plate 2A and a cylindrical side wall 2B connected to the outer periphery of the inner body 2C.
A receiving part 2D configured in the shape of a channel groove is connected to the back side of B so as to communicate with the inner main body, and a receiving part 3 on the side of the outer curved groove 3, which will be described later, is provided on the front side of the side wall 2B.
A rotation opening 2E relative to D is opened.
2F is a horizontal edge connected to the upper end surface of the inner main body.

On the other hand, the outer curved groove body 3 has an outer main body 3C consisting of a cylindrical side wall 3B connected to the outer periphery of a circular bottom plate 3A, and a receiving portion configured in the shape of a channel groove on the front side of the side wall 3B. 3D are connected to communicate with the outer main body, and a rotation opening 3E for the receiving portion 2D is provided on the back side of the side wall 3B.

As a matter of course, the inner main body 2C is rotatably fitted to the outer main body 3C from above, and both are connected by bolts 4 penetrated from the lower surfaces at the centers of the bottom plates 2A, 3A.

C. How to use: If the device 1 of the present application is arranged between the water channel grooves 5 and 6 located on one side and the other, and the water channel grooves 5 and 6 are in a straight line or not in a straight line as shown, loosen the bolt 4. The angle is determined by rotating both or one of the inner and outer curved groove bodies 2 and 3 until a desired angle is achieved.

After that, tighten the bolt 4 to fix it.

In this case, it is a matter of course that a liner 7 is interposed between the inner and outer curved groove bodies 2 and 3 as necessary to make them watertight.

Furthermore, by applying a coating on top of the special plating of the galvanized iron plate (2 ounces, twice the area weight of JIS), which is the material of the present invention, it can be made extremely resistant to rust.

C. Effects of the invention Since the present invention is configured as described above, it produces the following effects.

B The bending angle can be freely determined except for 90° and 45°.

(b) The labor of surveying, such as on-site surveying, can be saved.

C. Because the center is circular, even if the flow velocity is high, the curve will not cause overflow and the flow velocity will be weakened, making it as effective as an aquarium.

D. Even if there are changes during installation, there will be no problem of re-building.

For example, when laying a line for about 1 km, if there is a curve at the end, it is almost always impossible to form a waterway at that location.

In other words, the long and short sides always come out and the angle of the curved groove has to be changed to narrow or wide angles, so there were many problems of having to rework even if they were manufactured based on a survey design in the past.

The present application can solve this problem.

E. Even if the flow velocity in the curved groove part is high or the flow rate is large, overflow will not occur.

F. Can be easily installed in alignment with the waterway groove.

G. It has good workability and is not affected by frost heave, subsidence, etc.

H. Since it is manufactured in a factory, the cost will be slightly higher, but secondary labor costs can be reduced considerably.

This idea can also be applied to concrete products.

For curved grooves, we have been able to stock products with bend angles of 90° and 45°, but in the case of other desired angles such as 115° and 132°, we have to survey the terrain and prepare drawings. It takes a lot of time and effort to raise and manufacture the product, so it solves all of these problems, and allows construction workers to install it without making any mistakes, so it can be used with peace of mind.

Since the bottom plate of the inwardly curved groove body and the bottom plate of the outwardly curved groove body are connected at the center with bolts that can be tightened and loosened, the following effects can be expected.

That is, after setting the inwardly curved groove body and the outwardly curved groove body at a desired angle, the two can be reliably connected by an extremely simple operation of tightening one bolt.

Furthermore, since the two are integrated, the floating groove of the present invention can be prevented from floating.

Moreover, since it is constructed so that it can be used in a flat state on a flat surface, water quality, water volume, flow velocity, etc. can be checked extremely easily.

[Brief explanation of the drawing]

Fig. 1 is a perspective view from the back, Fig. 2 is a front view, Fig. 3 is a rear view, Fig. 4 is a plan view, Fig. 5 is an enlarged sectional view taken along line A-A, and Fig. 6 is B- FIG. 7 is an enlarged sectional view taken along line B, and FIG. 7 is an enlarged sectional view taken along line C-C. 1... Freely curved groove, 2... Inner curved groove body, 3... Outer curved groove body.

Claims (1)

[Claims for Utility Model Registration] A freely curved groove comprising an inner curved groove body 2 and an outer curved groove body 3 having the following conditions. (a) Both the inner curved groove body and the outer curved groove body are constructed with a cylindrical side wall connected to a disc-shaped bottom plate, and the inner curved groove body is rotatable within the outer curved groove body. be configured. (b) A water channel groove receiver is provided protrudingly provided on the front surface of the inner curved groove body and the rear surface of the outer curved groove body so as to communicate with each curved groove body. C. An opening is provided in the back surface of the inwardly curved groove body through which the channel groove holder of the outwardly curved groove body can pass and move in the circumferential direction. An opening is provided through which the water channel groove receiver of the inwardly curved groove body can penetrate and move in the circumferential direction. (d) The bottom plate of the inwardly curved groove body and the bottom plate of the outwardly curved groove body are connected at the center with bolts that can be tightened and loosened.