| 摘要 |
PURPOSE: A device to rotatably connect a fluid supply hose is provided to prevent fluid from polluting by minimizing a fluid floating space such as a dead space of an O-ring groove or a gap from the entrance of an inner assembly gap of first and second contacting liquid blocks to the O-ring groove position. CONSTITUTION: A device to rotatably connect a fluid supply hose comprises first and second contacting liquid blocks(30,40), an O-ring groove(50), and an O-ring(51). The inclined surface of front outer circumference of the first contacting liquid block and the O-ring groove in a triangle shape of the second contacting liquid block on the entrance of an inner assembly gap of the first and second contacting liquid blocks. A gap from the entrance of the inner assembly gap of the first and second contacting liquid blocks to the O-ring groove or a dead space of the O-ring groove are minimized by sealing an O-ring in the triangle side surface of the O-ring groove.
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