| 摘要 |
A spear tube (1) comprises a body connected with a keg neck interface (3) of the beer keg (2). A gas valve (13), a down tube (5) and a beer valve (4) installed in the down tube are fittingly connected to the body. A stopper (20) prevents the spear tube (1) from popping out from the beer keg during detaching operation. A stopper portion (23) of the stopper (20) is formed protruding in the obliquely upward direction to penetrate a side hole (4c) of the body and has a cross-section of a predetermined curvature shape. Therefore, the stopper functions to prevent the popping-out of the spear tube and provides improved durability. <IMAGE> |
