Pneumatic lining fluorine plastic corrugated pipe seal regulation valve

• Main Author: PIEDE XU
• Format: Patent
• Language: English
• Published: 26.02.2003
• Edition: 7
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model relates to a seal adjusting valve of a pneumatic operated fluorine plastic lined corrugated pipe, and the seal adjusting valve comprises a valve body (1), a valve core (2), a valve lever (4) and a corrugated pipe (5). An annular slot (14) is opened on the valve core (2), the lower end part of the corrugated pipe (5) is inserted in the annular slot (14), the valve core conical surface (9) is arranged on the inner wall of the lower end of the corrugated pipe (5), one side wall of the annular slot (14) on the valve core (2) is the valve core conical surface (13), the valve core conical surface (9) is suited on the valve core conical surface (13), at least an annular bulge (10) is arranged on the outer wall of the lower end of the corrugated pipe (5), the annular bulge (10) is contacted with the other side wall of the annular slot (14) and makes the interference fit. Because the fit of the two conical surfaces is the first seal, and the annular bulge on the outer side of the corrugated pipe is the second seal, the two seals can lead the seal of the two conical surfaces and the annular bulge to be reliable and durative.