| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a coupler for drawing a chemical which enables gas injection operation for easy discharge, and purity maintenance and cleanliness maintenance of a chemical stored in a container, and prevents the wrong use of the chemical by preventing wrong fastening. <P>SOLUTION: The coupler for drawing a chemical comprises: an auxiliary housing equipped with a female coupler fastened to a chemical discharge port on the container side and a male coupler fastened to the female coupler, and having an outer screw part for fastening the female coupler formed at the lower end; a fluid switching member equipped with a spring and a switching valve connected to the spring in the lower part of a hollow bar member, and disposed so as to be vertically locked; a connector fastened to the upper end of the hollow bar member for being connected to a pumping means for the chemical inside the container, a gas injection port fastened to the side hole of a main housing for being connected to a gas injection means for injecting a gas into the container; and sealing caps for closing the connector and the gas injection port when they are not used. <P>COPYRIGHT: (C)2008,JPO&INPIT |
