JPH08311970A - Rainwater infiltration purification pipe - Google Patents

Abstract

PURPOSE: To provide three functions such as drainage, groundwater recharge, and water purification by providing an ordinary water passage in a curved part comprising a beginning end part, a rising part, and a falling part, providing a purification and infiltration part in an extending part leading to the falling part, and providing a filter material in the purification and infiltration part. CONSTITUTION: In a rainwater passage 1 formed into nearly a G-shape in cross- section, an ordinary water passage is provided in a curved part comprising a biggining end part 5, a rising part 1', and a falling part 1", and a purification and infiltration part for the time of flooding is provided in an extending part 2 leading to the falling part 1". Next, a filter material 3 is inserted into the space between the part 2 and a triangular dowel formed by the part 5 so as to be held by a curved part of the part 2 and firmly held by a protrusion 5' of the part 5. And when the quantity of rainwater increases and the level of rainwater in the pipe 1 reaches a height H from a height h, the rainwater, in proper quantities, infiltrates through the purification and infiltration part, being filtrated by the part as well, to the underground, and the purified rainwater comes into contact with soil so that quality of water is improved and hence groundwater recharge can be effectively achieved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to provide an almost-shaped rainwater infiltration purification pipe having three functions of drainage, groundwater recharge and water purification.

[0002]

2. Description of the Related Art At present, the preservation of the earth has become a major issue as a part of environmental preservation, and the recharge of groundwater plays an important role in the preservation of this earth. This recharge of groundwater is effective in preventing soil drying and preserving the ecosystem.

Conventionally, rainwater storage and infiltration technology has been applied to such groundwater recharge. As this rainwater storage / infiltration technique, for example, a rainwater infiltration chamber or a rainwater infiltration trench is applied. The rainwater infiltration box is not filled with concrete at the bottom but filled with sand and crushed stone in this order. The rainwater infiltration trench is constructed by laying sand and crushed stone at the bottom of the buried perforated pipe and filling the surrounding area with crushed stone. However, these cannot not only be easily dealt with when the infiltration capacity is reduced due to clogging, etc., but also when a large amount of rainfall occurs, the function of the infiltration amount commensurate with the rainfall amount cannot be fulfilled, and conversely the fine particle soil particles around Invites to suck out.

A so-called rainwater pipe is also used, but it also has only the function of flowing rainwater, and does not have the function of fulfilling the purpose of underground recharge.

[0005]

SUMMARY OF THE INVENTION The present invention eliminates the drawbacks of conventional rainwater pipes and provides a rainwater pipe having the three functions of drainage, groundwater recharge and water purification. .

[0006]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The problem to be solved by the present invention is to provide a rainwater pipe which is formed from hard vinyl chloride into a substantially negative shape and has a booth-forming first end portion, a rising portion and a falling portion. At this time, the curved part consisting of the initial end part, the rising part and the descending part forms a normal flowing water channel, and the − shaped extension connected to the − decreasing part purifies and permeates when water increases. It is solved by forming a part.

The purifying and permeating section consisting of the extension of the letter "-" and the initial end section is provided with the drainage holes and the filter material made of synthetic fiber which can be replaced at any number and at intervals. In the present invention, the water is drained through the normal running water channel which is likely to cause clogging of the filter. When the amount of rainfall increases, rainwater permeates underground through the filter material in the purification and permeation section.

Such a letter-shaped rainwater permeation purification pipe is constructed by forming a sand layer and a crushed stone layer on the ground by a usual construction method, and laying it on it. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT As shown in FIG. 1, a rainwater pipe 1 according to the present invention is formed by forming a rainwater pipe 1 from hard vinyl chloride into a substantially-shape as shown in FIG. There is. The rainwater pipe 1 comprises a V-shaped initial end portion 5, a rising portion 1 ', and a descending portion 1 ". The initial end portion 5 forms a substantially triangular booth, and the end portion thereof has a protruding portion 5'.
The projection 5'functions to hold the filter material 3 described later.

In the above-mentioned typeface of the "-" shaped rainwater pipe, the initial end portion 5, the rising portion 1'and the falling portion 1 "form a normal rainwater running channel. This is because the amount of rainfall is small at a water level h, and since it contains a lot of fine dust, it is easy to cause clogging, so it is advantageous to discharge it as it is to a river like a normal rainwater pipe.

The descending portion 1 "of the substantially-letter typeface of the rainwater pipe 1 rests above the extending portion 2 which rises to the right with respect to the drawing of this-letter. A filter material 3 made of synthetic fiber is inserted between the triangular booth formed by the initial end portion 5 so as to be held in the curved portion of the extension portion 2. This filter has an initial end portion 5 The protrusions 5 ′ are fixed so as not to float or move.The curved portion formed by the extension portion 2 and the initial end portion 5 by the filter material 3 is used when the amount of rainfall increases. It forms a permeation filter part that promotes proper permeation into the underground.This filter material 3 is replaceable and replaced with a new one after an appropriate period of use.This filter also meets the target items for water quality improvement. Better filter function and purification function. It is contained carbon material in order to also, or it is also possible to mix materials to improve the filtering function, such as lime or the like.

Below the filter material 3, the bottom surface corresponding to the extension 2 of the negative typeface is substantially flat, and the drain hole 4 is formed in the flat surface. The diameter and number of the water drainage holes 4 and the formation interval are arbitrary.

This filter material 3 is partitioned on one side by a wall portion forming a triangular booth formed at the first end 5 of the "-" shape, and the other side is extended by a "-" shape on the other side 2.
It is divided by.

In the structure of such a-shaped rainwater infiltration purification pipe, when the amount of rainfall increases and the level of rainfall in the -shaped rainwater infiltration purification pipe reaches from the height h to H, ,
Rainwater passes through the purifying / permeating section 3 and permeates into the underground in an appropriate amount and is filtered. Therefore, the purified rainwater comes into contact with the soil to effectively improve the water quality, that is, recharge groundwater.

As can be seen from FIG. 1, this-shaped rainwater permeation and purification pipe can be laid on any ground. The laying method can be done by the usual rainwater pipe laying method. That is, the sand layer 6 is constructed on the ground, and then the crushed stone layer 7 is constructed, and the -shaped rainwater permeation purification pipe according to the present invention is laid thereon.

[0016] This-shaped rainwater permeation and purification pipe can be directly connected to other rainwater chambers and the like, and the connection can be performed in the usual manner. As shown in FIG. 2, the filter material 3 made of synthetic fiber in the purification / permeation section is provided over the entire length of the negative-shaped rainwater permeation purification pipe, and at this time, for example, by a nylon filter connection rope 8, it is displaced. It is connected via a fastening anchor 9. As a result, the filter material 3 always maintains a constant position without moving due to hydraulic force.

[0017]

The minus-shaped rainwater permeation purification pipe according to the present invention not only enables normal smooth drainage of rainwater, but also properly filters and purifies rainwater that permeates underground, and thus recharges groundwater. And the function of water purification can be achieved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a substantially-shaped rainwater permeation purification pipe according to the present invention, but with a filter material removed.

FIG. 2 is a cross-sectional view of a substantially-shaped rainwater permeation purification pipe according to the present invention.

FIG. 3 is a view showing a filter connection mode used in the purification / permeation section of the minus-shaped rainwater permeation purification pipe according to the present invention.

[Explanation of symbols]

 1-shaped rainwater permeation purification pipe 1'-shaped rising part 1'-character downward part 2 purification / permeation part 3 filter material 4 drainage hole 5 initial end part forming a booth 5'projection 6 Sand layer 7 Crushed stone layer 8 Filter connection rope 9 Anchoring anchor

Claims (2)

[Claims] 1. In a rainwater permeation purification pipe, an initial end portion (5), a rising portion (1 ') and a falling portion (1 ") which are formed from hard vinyl chloride into a substantially-shaped shape to form a booth.
Is formed as a rainwater pipe (1) consisting of an initial end part (5) and a curved part consisting of a rising part (1 ′) and a descending part (1 ″), which normally forms a water flow channel. A rainwater permeation purification pipe, characterized in that a minus-shaped extension (2) connected to a falling portion (1 ″) of the character forms a purification and permeation portion when water increases. 2. A filter made of synthetic fiber, wherein the purifying and permeating part consisting of an extension (2) and an initial end (5) of the letter “-” is replaceable with the drainage hole (4) at any number and interval. The rainwater permeation purification pipe according to claim 1, further comprising a material (3).