Mosquito-eradicating water grate for urban sewer

Abstract

Since 90% of mosquito in the city lives in the cloacae, the invention changes the frame of water screen into round porous plate and mounts flexible cover with closed curved face formed by several flexible rods to avoid the pass of mosquito. The invention designs the flexible cover based on mechanical theory to effectively eradicate mosquito and filter waste.

Description

1. Technical field [0001] The invention relates to the design of a mosquito-killing water grate for urban sewers, especially an important improvement in the key technology of the application number 200310110986.X, which is named "urban sewer mosquito-killing water grates". 2. Background technology [0002] The "urban sewer mosquito-killing water grate" that the applicant applied for on November 19, 2003 prevented mosquitoes from entering and leaving the water grate, thereby cutting off the life chain of mosquitoes in cities and reaching the purpose of eliminating mosquitoes in cities. But as a key component that constitutes this invention, there is a major deficiency in the design of the elastic shroud: the thickness and width of the elastic strips at the bottom of the same elastic shroud are fixed values, although the expanded elastic in the accompanying drawings The tail of the shroud is pointed, but there is no description in the description and the claims about the chang...

AI Technical Summary

Problems solved by technology

But as a key component that constitutes this invention, there is a major deficiency in the design of the elastic shroud: the thickness and width of the elastic strips at the bottom of the same elastic shroud are fixed values, although the expanded elastic in the accompanying drawings The tail of the shroud is pointed, but there is no description in the description and the claims about the changing rule of the tail of the elastic strip from wide to sharp, which will cause difficulties for those skilled in the art to implement, but if this factor is not taken into account, The surface will be rough due to the overlapping and congestion of the elastic strips at the closed surface formed by the elastic cover, especially in the central part.

At the same time, since the thickness of the elastic strip does not change, the central part of the closed curved surface will not significantly weaken the carrying capacity of the garbage but will become stronger, resulting in small and light garbage that cannot pass through the closed curved surface smoothly and accumulates in the central part of the curved surface Through practice, it is found that because the center of the closed surface is rough due to the overlapping and congestion of the ends of the elastic strips, and the light and small garbage is at the bottom of the center of the closed surface, so that the relatively heavier and larger garbage behind cannot pass through smoothly. closed surface

Therefore, although it maintains the function of preventing mosquitoes from entering and exiting, it loses the function of water grates penetrating fine garbage and keeping it clean, and it increases the cleaning workload for cleaners. If it is not cleaned in time, due to the cumulative effect, it will still Seriously affect the passage of rainwater

[0003] In addition, in actual use, it is also found that when the holes of the water grate skeleton plate form a tapered hole with a large top and a small bottom, hard objects such as stones will be stuck in the holes, and eventually the holes will be blocked and the water passing function will be lost. ; In addition, metal products and bamboo products are very poor in the constituent materials of the elastic cover sheet, and only a few plastic products can meet the requirements of use in terms of elasticity, toughness and surface finish.

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