Crank arm drainage device and ball valve

The embodiment of the invention discloses a crank arm drainage device and a ball valve, and relates to power storage station equipment.The crank arm drainage device comprises a water sealing cover, a water storage cavity, an air filter, a drainage valve and a first sealing strip, in the using proces...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHUANG GUANGMING, YANG LINSHENG, WANG YIFENG, GAO SONG, FAN XIAORUI, FU CHENFENG, GUO HONGZHEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CYLINDERS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PIPES PISTONS SEALINGS SEPARATION SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The embodiment of the invention discloses a crank arm drainage device and a ball valve, and relates to power storage station equipment.The crank arm drainage device comprises a water sealing cover, a water storage cavity, an air filter, a drainage valve and a first sealing strip, in the using process, the water sealing cover is arranged at a crank arm of the ball valve, one end of the water sealing cover surrounds a rotating shaft of a servomotor, and the other end of the water sealing cover is provided with a second sealing strip; in the embodiment, the water sealing cover is an L-shaped annular plate, the water sealing cover, the servomotor rotating shaft and the ball valve bearing seat support jointly define a water storage cavity, water leaked from the servomotor rotating shaft can be stored through the water storage cavity, an air filter and a drain valve are arranged on the water storage cover, and the water storage cover is connected with the ball valve bearing seat support. A first mounting groove is