Electric butterfly valve with safe locking structure

• Main Author: LIN LIMING
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2023
• 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 the technical field of electric butterfly valves, in particular to an electric butterfly valve with a safety locking structure, which comprises a valve body, and a transmission shaft is movably mounted between the top end and the bottom end of the valve body through a mechanical seal. By arranging the cross groove and the cross strip, the transmission shaft is inserted into the cross groove in the disc, the cross strip in the middle of the transmission shaft is in butt joint with the cross groove during insertion, then the lock sleeve is sleeved from the two ends of the transmission shaft until the lock sleeve is clamped on the cross strip on the two sides of the transmission shaft, and then the threaded rod is twisted from the two ends of the transmission shaft. When the transmission shaft and the disc are locked, the locking sleeves are clamped outside the two ends of the disc through the threaded rods, horizontal displacement between the transmission shaft and the disc can be p