Apparatus for connecting tube

The present invention relates to a tube connector, specifically, a glass inner tube (glass tube) is accommodated receiving portion; And the receiving portion at the both ends of the connection extending respectively; provide a stable fixing force to include, and each of the tube inserted in each of the connection being a tube connector to which the respective tube and the glass tube in communication, this structure, which is connected to tube yet, the removal is easily and, also, has the advantage that the adjustment of the flow agent are possible, as well, can also be obtained effects that the manufacturing and combined simply.