| 摘要 |
PURPOSE: A connection device for air-conditioning pipe tightening is provided to prevent refrigerant gas from being leaked by opening an internal path only when a joining part of two connection devices is sealed. CONSTITUTION: A connection device for air-conditioning pipe tightening comprises first and second connection caps(20a,20b), first and second supporting tubes, first and second switching bars, a fixed socket(50), a socket(60), and engage nuts(70). On the internal circumference of the fixed socket in which fluid path is shrunk in multiple steps, internal fluid path is controlled by sealing or separation of a first open and close rod shaped disk protrusion part. On the outer circumference of the other fixed socket end, protrusions are formed. On the other crossed section, joining projections which are protruded in pipe form are formed. On the internal circumference of the engage socket in which fluid path is shrunk in multiple steps, internal fluid path is controlled by sealing or separation of a first open and close rod shaped disk protrusion part. On the outer circumference of the other engage socket end, screw threads are formed. On the other crossed section, joining grooves are formed. |
