Tube joint

摘要

A tube joint is disclosed which comprises the following components: a pushing ring (13) provided at its outer periphery with a projection (13a) and adapted to be fitted to the outer periphery of one end of a joint tube (11); a tube or a joint body (12) provided at its side opposite to the pushing ring (13) with a projection (12a) opposite to the projection (13a) of the pushing ring (13), wherein the tube or the joint body (12) has a receiving portion (12a) which is widened toward the pushing ring (13) and the tube or the joint body (12) is adapted to be fitted to the outer periphery of the joint tube (11) with a peripheral gap left therebetween; a fastening device (14) capable of moving the pushing ring (13) in the axial direction of the tube or the joint body (12); a packing (15) provided between the inner side and the outer side of the tube or the joint body (12) and the joint tube (11) and adapted to be fitted through the receiving portion (12c) by its own resilient deformation by the operation of the fastening device (14); and a spacer (18) inserted between the pushing ring (13) and the tube or the joint body (12), adapted to limit the distance between the pushing ring (13) and the tube or the joint body (12) to a constant value. <IMAGE>