Manhole Cover for Preventing Inflow of Bad Smell and Harmful Insect

Abstract

A manhole cover for preventing the inflow of a bad smell and a harmful insect is provided. More particularly, the manhole cover includes a manhole top plate that has a plurality of drainage holes and a display part; a drainage guide plate that is integrally formed in a bottom part of the manhole top plate; a gate that is provided in a front end exit of the drainage guide plate and that is closed by a weight; and walls that are vertically and integrally formed in four edges of the manhole top plate. The display part, which is provided in one side of the manhole top plate can perform a specific display such as a trademark, a firm name, a logo, a slogan. The gate can be fully opened or closed within a space part by forming the space part in a lower part of the display part.

1 . A manhole cover for preventing the inflow of a bad smell and a harmful insect comprising: a manhole top plate that has a plurality of drainage holes;
 a drainage guide plate that is integrally formed in a bottom part of the manhole top plate or that is integrally formed by assembling after separately formed and that have an one-way exit;   a gate that comes in close contact with an exit inclined surface of the drainage guide plate and that opens and closes about hinges as hinges of both sides of the manhole top part are mounted in both sides of a bottom surface of the manhole top plate;   a display part for showing various displays such as a firm name, a trademark, a phone number, or so on by extending a side of the manhole top part in which one side, i.e., the gate of the manhole top plate is provided;   a space part for fully stably opening the gate in a lower part of the display part;   and walls that are vertically formed with an equal height in four edges of the manhole top plate wherein the manhole cover is made of synthetic resin such as engineering plastics, and wherein hooking protruded parts are provided in a predetermined position of both sides of the manhole cover and hooking recessed parts are provided in a position corresponding to the hooking protruded parts in a manhole frame.