| 摘要 |
The present invention is provided to obtain an opening and closing stopper for a sink drain, which is able to: firmly keep a drain inlet opened or closed without errors; facilitate continuous and smooth drainage and complete closure; and guarantee stability and reliability for the opening and closing operations of the drain inlet. The provided opening and closing stopper for a sink drain comprises: a drainage plate of a funnel shape in which the drain inlet in the center is positioned to be lower than the edge and a raised part is formed in the bottom of the edge; an upper opening type double pipe which is installed in the center of the drainage pipe, has an installation space between concentric elevating guide pipe and opening and closing guide pipe, and enables the elevating guide pipe and the opening and closing guide pipe to be integrated toward the bottom side; two or more furring bamboos which connect a drain pipe with a double pipe by being formed in a drain space between the drain pipe and the double pipe; a stopper plate which opens and closes the inlet of the drain pipe and enables the elevating pipe of the bottom surface to be inserted into the elevating guide pipe; a spring which supports the stopper plate by being loaded into the installation space; and elastic plates which are formed symmetrically in the bottom of the stopper plate, have an elasticity generating space formed between the elastic plates, and penetrate the center of the opening and closing guide pipe of the double pipe. |
