Apparatus for preventing offensive odors for a drain

Abstract

The present invention relates to an apparatus for preventing offensive odors for a drain. The apparatus for preventing offensive odors for a drain according to the present invention comprises a mounting member, a main body member, and a linear and inclined resilient band. The mounting member includes a ring-shaped support plate portion mounted on the drain, a hollow tube-shaped neck portion which extends downward from the support plate portion and the center of which has a drainage path, and a curved portion for interconnecting the support plate portion and the neck portion. The main body member includes a tubular mounting portion coupled to the outer surface of the neck portion through a connecting element, and a discharge portion extending from the lower portion of the mounting portion so as to be selectively opened.; The linear and inclined resilient band is arranged at the outer surface of one side of the discharge portion in the widthwise direction such that both ends of the band are located at different heights. The thus-configured apparatus of the present invention is advantageous in that the water inlet part of the mounting member has a slow curve to enable the smooth inflow of wastewater, and the resilient band arranged at the outer surface of the discharge portion of the main body member is inclined at a predetermined angle to enable the discharge portion to be opened in an elliptical shape, which enables the discharge portion to be easily opened even when the amount of wastewater is small, thereby improving drainage efficiency and reducing the fatigue of the resilient band, thus improving durability and ensuring a long lifespan.

Description

technical field [0001] The present invention relates to a sewer stench prevention device for preventing foul odors caused by backflow of sewer sewage in household sewers or road manholes. More specifically, it provides a device for reducing the fatigue of elastic belts due to the opening and closing of the main body in an oval shape. It maintains a long service life and is a sewer odor prevention device that increases water flow by increasing the drainage speed of sewage. Background technique [0002] As we all know, sewers are used to discharge rainwater or sewage that is used up and thrown away from houses, factories, hospitals, etc. This kind of sewers is provided with sewer pipes buried in the ground, and there is a discharge channel on the upper part of the sewer pipe. The above-ground part has a setting opening, and the setting opening has a friction structure or a sewer cover with a plurality of through holes. Subsequently, after various sewages flow into the downpip...

AI Technical Summary

Problems solved by technology

[0008] However, in the sewer stench prevention device previously applied by the present applicant, since the elastic belt is horizontally arranged in a direction perpendicular to the water passage of the dredging part, it is necessary to apply a uniform drainage pressure to the entire elastic belt when opening, so the opening and closing action The problem of shortening the life of the elastic belt due to roughness and high fatigue

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