JPH093831A - Green belt and water-retaining tool for the green belt - Google Patents

Abstract

PURPOSE: To obtain a tool having a highly water-retaining function, by providing an upper face body having a recess like a receive plate at the upper face and bored drain holes, a frameform buried body fitted to the upper face body and vertically pierced, and a shading board arranged in the middle of the buried body and provided with a number of small holes. CONSTITUTION: Sprinkled water and rain water flow from the surface of a plant area or a bank 6 to the side edge and enter the recess 32 of the upper face body 3 of a water-retaining tool buried at the side edge of a green belt and then flow down from drain holes 34 into the buried body 1. The water led into the buried body 1 flows down from small holes 21 of a shading board 2 into a sand bed 8 and then, penetrates into the underground of a plant area. Accordingly, even if a lot of rain water or sprinkled water have been brought, the sand bed 8 itself serves as a temporary water reservoir and promotes penetration of rain water into the underground. Since the sand bed itself has not the water retaining function, it is dried soon. Since light is blocked by the shading board 2, plants do not grow in the sand bed 8 and hence, a belt area without plants having the width or the water-retaining tool can be formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a green belt formed on a median strip on a highway or the like, and more particularly to water retention for planting the green belt.

[0002]

2. Description of the Related Art As is well known, a green belt is used as a median strip on a highway or an arterial road, or as a strip on a sidewalk of a road. They are arranged in a band along with the embankment, and the embankment up to the upper edge of the curb is formed in the area surrounded by the curb, followed by appropriate planting.

[0003]

In the above-mentioned conventional green belt, since there is only a curb as a boundary with the road surface, weeds may extend over the curb to the road. If left unattended, it is dangerous for the traveling vehicle, and naturally weeding work is required. Even in the natural environment and when the planting state is left unattended, there are places where plant growth is sufficiently performed, as well as places where watering is required frequently. In such a place, the penetration of rainwater into the embankment in the green belt is not sufficient, and the rainwater and water sprinkle immediately over the curb only to wet the surface of the embankment.

As described above, the conventional green belt requires complicated maintenance work such as weeding work and watering work. Therefore, the present invention proposes a green belt for improving the water retention function and a water retention device for forming the green belt.

[0005]

According to the present invention, there is provided a water retention device for a green belt according to the present invention, wherein the upper surface is formed into a receiving plate-shaped concave portion and an upper surface body in which a water flow hole is formed, and a vertically penetrating frame shape. It is characterized by comprising a buried main body fitted inside and a light-shielding plate provided with a number of small holes and arranged in the middle of the buried main body. In particular, in the appliance, an inclined groove is formed in a concave portion of the upper surface body, a water flow hole is formed in a bottom of the inclined groove, and a light shielding plate is formed in black.

Further, the green belt according to the present invention is formed by forming a sandy layer at a side edge of a band-shaped planting area, and arranging the equipment at the area. It is characterized by being arranged along the inside.

[0007]

The water spray and the rainwater flow from the surface of the planting area (fill) to the side edges, and consequently flow into the recesses on the upper surface of the water retention device arranged on the side edges. The water that has flowed into the recess is introduced into the buried main body from the water flow hole. In particular, if the inclined groove is provided in the concave portion, the water can be quickly introduced into the main body from the water hole. The water that has flowed into the main body flows down from the small holes of the light shielding plate into the sandy layer, and penetrates from the sandy layer into the basement of the planting site.

[0008] Therefore, even if a large amount of rainwater or watering occurs, the sandy layer itself becomes a temporary water retention reservoir and promotes penetration of rainwater and the like underground. Furthermore, since the sandy layer itself does not have a water retention function, it immediately dries, and light is blocked by a light shielding plate, and plants do not grow on the sandy layer, so that a plantless belt of the width of the water retention device is formed. Become.

[0009]

Next, an embodiment of the present invention will be described. The water retention device A for a green belt according to the present invention includes a buried main body 1.
, A light shielding plate 2 and an upper body 3.

The buried main body 1 has a side wall portion 11, an upper opening portion 12, and a lower opening portion 13 and has a box frame shape entirely penetrating vertically, and a mounting step 14 is provided at an intermediate portion inside. At the same time, a mounting hole 15 for mounting the connecting pin 4 is provided at an appropriate position on the side wall 11. The light shielding plate 2 is a black plate having a size corresponding to the upper opening 12 of the buried main body 1, having a number of small holes 21 formed therein, and mounted on the step 14 of the buried main body 1.

The upper body 3 has a shape in which a box-shaped container is turned upside down, and is large enough to be tightly fitted into the upper opening 12 of the buried main body 1. The upper surface is lower than the edge 31 and the edge 31. It is composed of a saucer-shaped recess 32 formed and
An inclined groove 33 is formed therein, and a flowing water hole 34 is formed at the bottom of the inclined groove. In particular, the inclined groove 33 has a V-shaped cross section,
The outer peripheral portion along the edge portion 31 and the inside of the concave portion 32 are formed in a cross shape that divides the inside into a cross, and the flowing water holes 34 are provided at nine intersections of the grooves.

Next, a green belt using the water retention device will be described. It is basically the same as the conventional green belt, in which a curb 5 is arranged at the boundary with the road surface B, and an embankment 6 and planting 7 are applied inward. Therefore, the green belt of the present invention forms a sandy layer 8 at a depth where the water retention device A is buried along the inside of the curb 5 which is a side edge of the green belt, and places the water retention device A above the sand layer 8. The connection pins 4 are used for long connection, and the curb 5
Buried in contact with the inside of the upper surface of the upper surface plate 3 of the instrument
1 corresponds to the planting surface of the embankment 6.

In the above-mentioned green belt,
When raining or watering is applied, watering and rainwater partially penetrate into the embankment 6, but the water that has not permeated flows down the surface of the embankment 6 toward the road surface B. However, since the water retention device A is buried and installed on the side edge of the green belt, most of the water that has flowed down, i.e., sprinkling water and rainwater, is not covered by the upper surface body 3.
Flows into the recess 32, and further flows down into the inclined groove 33, and flows down into the buried main body 1 from the flowing water hole 34. The water that has flowed into the buried main body 1 flows down from the small holes 21 of the light shielding plate 2 to the sandy layer 8 and penetrates from the sandy layer 8 into the basement of the planting place, and the amount of inflow water is larger than the amount of permeated water. Even in this case, the sand formation layer 8 itself can be used instead of the water retention basin, so that rainwater and watering can be permeated into the ground without waste. Therefore, it is possible to effectively infiltrate the water into the embankment 6 at the planting location,
Watering work can be reduced as compared with the past.

The water retention device A is provided with a light-shielding plate in the middle of the main body, and the sandy layer 8, which is the growing soil for plants, is shielded from light by the light-shielding plate 2, so that plant growth on the sandy layer 8 is prevented. Have been. For this reason, since the function of the equipment does not decrease due to the growth of the plant in the water retention equipment A, and the water retention equipment A itself becomes a blocking belt for the plants, weeds are prevented from entering the road surface B from the green belt, and as a result, Green belt weeding work was also reduced.

The present invention is not limited to the above-described embodiment. If the buried main body 1 is formed high or the side portion on the road surface side is extended downward so that at least the sand layer is not exposed, The water retention device itself can also serve as a curb, and a green belt without curb can be formed. Although it is more convenient to handle the water retention device with resin, it is better that the buried main body is made of concrete when it also serves as a curb as described above.

[0016]

As described above, according to the present invention, the upper surface is formed into a dish-shaped recess on the upper part of a large number of buried bodies in which a light shielding plate having a large number of small holes is provided. Rainwater or watering with a water retention device fitted with an upper surface body with perforated water holes, and a green belt in which a sandy layer is formed at a side edge portion that is a boundary with a road surface and the water retention device is embedded on the sandy layer. Of these, the runoff that does not permeate the embankment is taken in at the water retention device point, penetrates into the embankment from the sandy layer, and aims to use rainwater and water efficiently, and the water retention device installation point becomes a wide boundary with the road surface, and Prevents plant growth at the location where water retention equipment is installed, preventing weed propagation on the road surface, and consequently reducing watering and weeding work on the green belt and streamlining maintenance management of the green belt. It was done.

[Brief description of drawings]

FIG. 1 is an overall perspective view of an embodiment of a water retention device of the present invention.

FIG. 2 shows the upper surface body, wherein (a) is a cross-sectional view,
(B) is a plan view.

FIG. 3 is a sectional view of an embodiment of the green belt of the present invention.

FIG. 4 is an enlarged sectional view of the main part.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 buried main body 11 side wall portion 12 upper opening portion 13 lower opening portion 14 mounting step 15 mounting hole portion 2 light shielding plate 21 small hole 3 upper surface body 31 edge portion 32 concave portion 33 inclined groove 34 running water hole 4 connecting pin 5 curb stone 6 Embankment 7 Planting 8 Sandy layer

Claims (4)

[Claims] 1. An upper surface body receiving a top surface as a dish-shaped recess and having a water flow hole formed therein, a frame body vertically penetrated, a buried main body in which the upper surface body is fitted, and a plurality of small holes are formed. And a light-shielding plate disposed in the middle of the buried main body. 2. The water retention device according to claim 1, wherein an inclined groove is formed in the concave portion of the upper surface body, a water hole is formed at a bottom of the inclined groove, and the light shielding plate is formed in black. Characteristic water retention equipment for green belts. 3. A plurality of buried main bodies in which a sandy layer is formed at a side edge portion of a band-shaped planting portion and a light-shielding plate having a number of small holes formed therein is formed in a vertically penetrating frame shape. The upper surface body continuously installed on the stratum, receiving the upper surface as a dish-shaped recess, and having a water hole formed therein, is fitted and mounted on the upper part of each of the buried main bodies at a position height coinciding with the planting surface of the green belt. A green belt characterized by the following. 4. A green belt, wherein the green belt according to claim 3 is formed along a curb inside.