| 摘要 |
The invention is a piping coupler with volume adjusting function. The invention is a piping coupler connecting a pair of pipe or tube (2, 3) which comprises a body (10) having a passage (5) communicating one of the pipe or tube (2, 3) and a spiral guide groove (30) on the outer periphery of it, and a housing (55) having an insert hole (25) into which said body (10) could be slidably inserted and the insert hole (25) having a guide projection (35) or a screw projection (40) on the inner surface to be engaged with said guide groove (30) or the guide projection, and the housing (55) having an opening (48) communicating the other of the pipe or tube (2, 3), and the body (10) being provided with a valve head (16) on the front end facing the opening (48) of the housing (55) and the port (65) on the outer surface communicating the passage (5) with the opening (48) of the housing (55). |
