Motion prevention structure of valve rod of butterfly valve

The utility model provides a motion prevention structure of a valve rod of a butterfly valve, relates to the technical field of fluid control, and aims at solving the technical problems that an existing butterfly valve is not tight in sealing and prone to leakage, and a valve rod of the existing but...

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Main Authors ZHANG MINGWU, QUAN YUHUA, XIAO PENG, GONG WANGJUN, JIANG JIAN, ZENG SHOUPING, ZHANG JUNPING, RAN PING, XU DANHONG
Format Patent
LanguageChinese
English
Published 31.07.2013
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
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Summary:The utility model provides a motion prevention structure of a valve rod of a butterfly valve, relates to the technical field of fluid control, and aims at solving the technical problems that an existing butterfly valve is not tight in sealing and prone to leakage, and a valve rod of the existing butterfly valve motions. According to the motion prevention structure of the valve rod of the butterfly valve, a limiting groove is formed in the periphery of the tail end portion of the valve rod (4), split collars (3) are arranged in the limiting groove, a friction pad (2) is arranged on the split collars (3), and an adjusting pad (5) is arranged on the tail end face of the valve rod (4).
Bibliography:Application Number: CN2013234809U