| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pipe connection structure, and a valve, a pipe joint and a freezer which use the pipe connection structure, preventing a screw part from easily loosening by any person after pipe connection and preventing a pipe from being removed by loosening the screw part. <P>SOLUTION: This pipe connection structure includes a joint body 1 and a connecting member 2. The connecting member 2 has a pipe connecting part 22 screwed around the joint body 1, and a gripping part 23 positioned on the side of the pipe connecting part 22, opposite to the joint body, and gripping two opposed parallel sides by a general tool. The portion of the gripping part 23 (in this case, a corner including a top 26) on which force concentrically acts when fastened by the general tool is formed to weaken strength in a rotating direction when fastening. The corner part is formed to be deformed by rotational torque developed when the fastening of the connecting member 2 is completed to thereby transmit no farther rotational torque, and the deformed portion is formed to be restored to the original state by the tool. <P>COPYRIGHT: (C)2009,JPO&INPIT |
