JPS6214213Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an infiltration manhole that allows only a certain amount of water to fall into the manhole and infiltrate when there is a lot of water flowing, such as during rain. A predetermined vertical manhole is constructed by sequentially stacking a straight wall pipe, a diagonal wall pipe, a receiving frame, a cover, etc. on a vertical permeation pipe having a permeation hole in the side wall,
In addition, an inflow pipe and a water flow pipe are respectively installed in a predetermined portion of the manhole, and a trough-like flow bridge having a predetermined depth and inner diameter is connected to the inflow pipe and water flow pipe attached to the manhole. This relates to an infiltration manhole that is characterized by its structure.

In conventional infiltration manholes, a small amount of water always flows in, so the filter part attached to the infiltration hole is always immersed in this flowing water, and therefore the filter part cannot be dried, so the filter function does not work. There were drawbacks that significantly reduced the Another disadvantage is that the solids contained in the constantly flowing water cause major clogging of the filter.

The present invention is a completely new technology developed in view of the drawbacks of the conventional technology.In particular, a small amount of water flowing into a manhole from an inflow pipe is not allowed to fall directly into the manhole, but instead is transported to a water bridge. Only when the water exceeds a certain amount, such as during rain, a certain amount of water is allowed to fall into the manhole, allowing it to penetrate into the surrounding ground, and the filter function of the seepage pipe is activated. This relates to a completely new infiltration manhole that can be kept in the best condition at all times. To specifically explain one embodiment of the manhole according to the present invention with reference to the drawings, in Figs. It is constructed by sequentially stacking and interconnecting a vertical permeation pipe 5 having permeation holes 4, a straight wall pipe 6, a diagonal wall pipe 7, a receiving frame 8, a lid 9, etc. An inflow pipe 10 and an outflow pipe 11 are installed at a predetermined position approximately in the center of the manhole 1 in correspondence with each other, and between these inflow pipe 10 and outflow pipe 11 there is an arcuate gutter-shaped flowing water. A bridge 12 is spanned via a pedestal 13 and the like, and is configured so that running water flowing in from the inflow pipe 10 can flow out to the outflow pipe 11.

In the above embodiment, the inflow pipe 10 and the outflow pipe 1
A permeation hole 4 is perforated in each of the pipes 1, and these pipes 10 and 11 form a horizontal permeation pipe.
In the figure, 14 is a step provided inside the manhole.

In the above embodiment, various shapes, internal depths, inner diameters, etc. of the flowing water bridge 12 can be selected as required, and furthermore, the joints between the flowing water bridge 12, the inflow pipe 10, and the outflow pipe 11 can be selected as needed. In addition to the above, various combinations can be adopted as shown in FIGS. 6 to 8.

As mentioned above, the manhole according to the present invention has an inflow pipe and an outflow pipe installed at predetermined positions of the manhole in correspondence with each other, and a water bridge having a predetermined depth and inner diameter is spanned between these pipes, and the lower part is Since the permeation pipe is installed, the small amount of water that constantly flows flows directly from the inflow pipe to the outflow pipe via the flow bridge.
Only when there is a large amount of flowing water, such as during rain, the flowing water can overflow into the manhole from the flowing bridge, allowing the water that has entered the manhole to infiltrate into the surrounding ground from the seepage pipe at the bottom, and therefore the lower part of the manhole. Since the filter part attached to the permeation pipe is not constantly immersed in water, the filter part can be kept dry and the filter function can be kept in the best condition for a long time. It has features such as being able to protect from objects and prevent clogging of the filter section.

[Brief explanation of the drawing]

FIGS. 1 to 5 are explanatory diagrams of the manhole of the present application, and FIGS. 6 to 8 are explanatory diagrams of other examples. 1 is a manhole, 4 is a penetration hole, 5 is a penetration pipe, 1
0 is the inflow pipe, 11 is the outflow pipe, 12 is the water bridge, 13
is a pedestal.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A vertical manhole is constructed by sequentially stacking a straight wall pipe, a diagonal wall pipe, a receiving frame, a cover, etc. on top of a vertical permeation pipe having a large number of permeation holes in the side wall. , and an inflow pipe and a water pipe are respectively installed in a predetermined part of the manhole, and a trough-like water bridge having a predetermined depth and inner diameter is provided on the inflow pipe and the water pipe attached to the manhole. A penetrating manhole characterized by being constructed by spanning over it. (2) The infiltration manhole according to claim 1, wherein the inflow pipe or the outflow pipe, or both, are constituted by horizontal infiltration pipes having infiltration holes. (3) The infiltration manhole according to claim 1 of the utility model registration claim, characterized in that the flowing water bridge is configured in the shape of an arcuate boat bottom.