| 摘要 |
A connection screw nut for dedicated use in split air conditioning refrigerant connection pipelines, characterised in that: between a connection screw nut threaded inner hole (14) and a smooth wall inner hole (19) is a screw nut inner conical bore (7), a conical sleeve (10) used for mating being disposed within said screw nut inner conical bore (7), a conical sleeve inner conical bore (21) being disposed at the bottom of the conical sleeve hole; when connected, an outer frustrum (5) on a connector (1) presses a bellmouth (8), the bellmouth (8) presses the conical sleeve inner conical bore (21), and a conical sleeve conical oblique angle (22) is pressed between the screw nut inner conical bore (7) and a connection pipe (13) to form a connection pipe seal; the bellmouth (8) is pressed between the connector outer frustrum (5) and the conical sleeve inner conical bore (21) to form a bellmouth seal. |
