| 摘要 |
A liquid co-injection apparatus comprising a high-pressure resistant rubber plug capable of obstructing a slit when the chamber is under a high hydraulic pressure. The main body of the liquid co-injection apparatus comprises a chamber part, a downstream branch-tube extending from the chamber part in different directions, an upstream branch-tube, and a connection opening with an attached lid. A rubber plug is attached to the inside of the lid to allow obstruction of the lid when the slit of the rubber plug is closed, and to allow communication between the insides of the chamber part and the connecting tube when the connecting tube is inserted into the slit. Moreover, a rib is provided on the outer peripheral surface of the rubber plug to allow the rubber plug to be strongly drawn and pressed onto the inner peripheral surface of the lid member, further securing the obstruction of the slit.
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