Hose coupling assembly

摘要

A hose coupling assembly wherein a hose (20) having a corrugated portion (22) is coupled to a fitting block (24) by a socket (50). The fitting block (24) has a block engagement catch (25c) projecting from the outside rim of the block body (25). The socket (50) comprises a socket body (51) elastically expandable and contractible by being divided by a slit (51a), and a socket engagement catch (51b) engages the block engagement catch (25c). To detach the socket (50) from the fitting block (24), force is applied in a rotation direction to a push operation portion (51c) to cause the socket body (51) to undergo diametrical expansion, releasing the socket engagement catch (51b) from the block engagement catch (25c). The socket body has a slit (51Fa) across the entirety of a length of the socket to provide C-shaped cross section, and the hose coupling assembly further comprises a diametrical expansion restricting member (60F), for restricting diametrical expansion of the socket body when attached to the socket body extending over the slit.