| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a biting-in type pipe connection structure, a valve, a pipe coupling and a refrigerating unit using the same, capable of connecting a pipe (a small diameter pipe) having a smaller diameter than a pipe having a predetermined diameter, in the biting-in type pipe connection structure designed with the pipe (a large diameter pipe) having a predetermined diameter as a reference. <P>SOLUTION: This biting-in type pipe connection structure is provided for connecting the large diameter pipe, and uses an entry adjusting means (for example, a spacer 71) adjusting a clearance between an entry 16 and the small diameter pipe P3, a small diameter step part (for example, a step part 73) regulating a tip position of the small diameter pipe P3, and an insertion hole adjusting means (for example, for replacing a large diameter ferrule 3 with a ferrule 6) adjusting a clearance between a large diameter insertion hole of the large diameter ferrule and the small diameter pipe P3 when connecting the small diameter pipe P3. Thus, the small diameter pipe P3 can be smoothly connected while installing a coupling body 1 in a connection object side apparatus. <P>COPYRIGHT: (C)2009,JPO&INPIT |
