Valve rod protective cover

The utility model provides a valve rod protective cover which comprises a protective assembly, and the protective assembly comprises a limiting ring, a rubber ring, three connecting columns, a protective pipe, a connecting seat, a sealing seat, a threaded rod, a sealing ring, a sealing groove, three...

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Bibliographische Detailangaben
Hauptverfasser:	WAN ZHONGYOU, LI YONGLAI, ZHANG XUEHU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	The utility model provides a valve rod protective cover which comprises a protective assembly, and the protective assembly comprises a limiting ring, a rubber ring, three connecting columns, a protective pipe, a connecting seat, a sealing seat, a threaded rod, a sealing ring, a sealing groove, three locking rings, two guide rods, a spring and three limiting columns. The connecting seat is connected to the top of the outer side wall of the valve cover in a sleeved mode, the connecting seat is pressed downwards, the threaded rod pushes the locking ring to enable the connecting seat to be fixedly connected with the valve cover, the limiting ring is connected to the outer portions of the three connecting columns in a sleeved mode, and the three connecting columns are fixedly connected through nuts. The sealing seat and the connecting seat are fixedly connected with the hand wheel and the valve cover respectively, and the protective pipe can be contracted, stretched and rotated to protect the valve rod, so that th