JP2008038578A - Implement for preventing mosquito larva hatch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make an effect on generation of a copper ion wiping out mosquito larvae by providing a copper plate which is made to always stand perpendicularly in the water of a rainwater basin or the like, where the mosquito larvae may hatch, by mounting a floating material on the copper plate which is effective in preventing mosquito larva hatch over a long time, as both surfaces of the copper plate are in contact with the water to have a larger area of contact in the water and the copper plate neither sinks into the bottom horizontally nor is covered by a deposited material, in view of the problem, in recent years, of hatch of mosquitoes transmitting viral infectious diseases. <P>SOLUTION: By mounting the floating material on the copper plate preventing the mosquito larva hatch to always keep the copper plate perpendicular in the water, the copper plate neither sinks to the bottom flatly nor is covered by the deposited material. Further, by making the copper plate larger than the drainage port of the rainwater basin, it is not washed away and the mosquito larvae can be got rid of over a long period. When the copper plate has the size that can be put in from a rain water inflow port, it can be easily installed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a means for preventing the occurrence of a bow flutter in rainwater buried in a side edge or the like of a paved road.

  On both sides of the paved road, rainwater drains are installed to allow the rainwater on the road surface to flow quickly into the sewage mains through the gutters when it rains. Rainwater that flows on the road surface enters the rainwater from the inflow opening provided in the lid of the rainwater, and flows into the sewer main.

  In addition to rainwater, garbage and earth and sand enter the rainwater. In order to prevent all of them from flowing into the sewage mains, the drainage pipe is installed at a position 10 to 20 cm above the bottom of the stormwater, and up to a certain amount of soil and sand that has flowed into the stormwater Can be stored in Accumulated earth and sand will be removed by human power as appropriate.

  Since the structure of the rainwater is as described above, it is normal that rainwater is collected as well as earth and sand except when it does not rain for a long time.

  In recent years, a large number of bow flares have been generated in rainwater containing a large amount of organic matter flowing on the road surface, and damage caused by mosquitoes that have emerged has been reported.

  Since rainwater is installed on both sides of the road at intervals of several meters, there are quite a few urban spaces, and mosquitoes frequently occur in urban areas and suburbs with little wetlands and water pools. This is why.

There are the following as a means of exterminating or preventing the generation of bow flares in rainwater.
(1) Insecticide injection into water.
(2) Cover the inlet with a mosquito net so that mosquitoes do not enter the rainwater trout.
(3) Make the bottom of the rainwater mounds underground.
{Circle around (1)} is washed away with rainwater, and since the effect is not sustainable, it is necessary to carry out frequently and is not preferable from the viewpoint of environmental pollution.
In (2), the road surface may be flooded during heavy rain because the nets are easily clogged with dirt and fallen leaves on the road surface.

Utility model document 1

Registration No. 3103607 {circle around (3)} may not be expected to infiltrate everywhere, and the groundwater vein formed by the infiltrated water may grow into a hollow and cause the road to collapse.

Since many mosquitoes not only bite people and make them uncomfortable, but also transmit infectious diseases, prevention of occurrence is an important issue from the viewpoint of maintaining human health.
From June 18, 2003, issued by the Ministry of Health, Labor and Welfare

  The above-mentioned conventional bowl hula removal equipment is simple but unsustainable, the mosquito net is clogged with garbage and leaves, and the underground penetration type has many harmful effects such as subsidence of the roadbed. .

  It has been known for a long time that copper flakes are not generated due to the generation of copper ions when copper is put into water. To confirm this, the Japan Copper Center requested a test from the Japan Environmental Health Center. did. The results are published on the homepage of the Japan Copper Center, and it is a well-known fact that it is effective.

  In the present invention, by attaching a flotation agent to a commercially available industrial product material copper plate of 1.5 mm or less, which is effective in preventing the generation of boufra, the copper plate is always in a vertical state in water such as rainwater generated by boufra. In other words, both sides of the copper plate have an effective contact area with rainwater. In this case, the bottom of the copper plate may or may not touch the bottom of the rainwater masu.

  If there is no levitation material, the copper plate may sink horizontally to the bottom of the rainwater, and the upper part of the copper plate is covered with sediments such as earth and sand that flow into it, preventing the generation of copper ions that kill the bowfra.

  If the present invention is larger than the drainage port of rainwater, it will not flow out and will be effective in extinguishing bow flares for a long time in water.

  If the size of the present invention is such that it can be introduced from the rainwater inlet, it can be installed without opening and closing the heavy rainwater lid each time, thus reducing the amount of work.

  The mosquito generation time is arranged with the one that put the present invention (0.3 x 180 x 200 mm copper plate with a resin foam levitation material of 20 x 30 x 200 mm) and the one that can not be put in an 18 liter rainwater tank As a result of being left outdoors for two months from June 1st, the generation of underwater micro-organisms such as boufra was seen in those who could not enter, but the occurrence of boufra in the rainwater tank containing the product of the present invention I didn't see any animals.

The invention's effect

  Since the present invention has a simple structure, it can be easily manufactured and easily installed. Moreover, since it can be made relatively inexpensive, as described above, it is extremely suitable for installation in rainwater drains that are too many beside a paved road. Moreover, even if it is added, there is no concern about environmental pollution like insecticides. recent years. Occurrence of mosquitoes that transmit infectious diseases such as West Nile fever and avian influenza has become a global problem, but the present invention is considered to be extremely useful as an environmental measure product that solves these problems.

FIG. 2 is a cross-sectional side view of the present invention. It is an example in which the present invention is thrown into a rainwater mass beside a road

Explanation of symbols

1: levitation material 2: copper plate 3: rainwater mass opening 4: rainwater mass lid 5: copper plate with levitation material 6: rainwater mass 7: outlet 8: rainwater pool

Claims (1)

  A bow hula generation prevention tool in which a floating material is attached to a piece of a general-purpose copper plate that is 1.5 mm or less in thickness and the copper plate can be held vertically in water.

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