Stopper of liquid container

摘要

A stopper for a container including a stopper body provided with an inlet port at the lower end thereof and an outlet port communicating with the inlet port at the front end thereof. A guide cylinder extends from a wall above the inlet port within the stopper body and a push rod extends through and beyond either side of the guide cylinder. The push rod is provided with a valve body for opening and closing the inlet port at a lower end thereof and a receiving seat at an upper end thereof. A spring is disposed between the wall above the inlet port and the receiving seat for biasing the push rod upwardly. A lever is arranged to pivot about a hinge positioned in the front part of the stopper body at the same level or below the upper end surface of the push rod when said valve body is in a position at which it closes the inlet port. The lever has a center portion which engages with the upper end surface of the push rod and an actuating portion of the lever projects from a cut-out portion formed in the rear portion of the stopper body. The valve body opens and closes the inlet port in an interlocking relationship with an up and down movement of the lever.