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1. (WO2018099138) NOVEL DIAPHRAGM VALVE

Pub. No.:    WO/2018/099138    International Application No.:    PCT/CN2017/097466
Publication Date: Fri Jun 08 01:59:59 CEST 2018 International Filing Date: Wed Aug 16 01:59:59 CEST 2017
IPC: F16K 7/06
Applicants: NANTONG BEITE MEDICAL MECHANINERY CO., LTD.
南通贝特医药机械有限公司
Inventors: BIAN, Bozhong
汴伯中
BIAN, Yefei
汴叶飞
LIU, Lixin
刘立新
LIU, Daolong
刘导龙
GU, Xinmin
顾新民
Title: NOVEL DIAPHRAGM VALVE
Abstract:
Disclosed is a diaphragm valve, comprising a valve body (1), an inner ring rotation disc (12) in the valve body (1), a bottom cover (2) and a handle (3) connected to the inner ring rotation disc (12). A top ring (4) is arranged at the top of the valve body. A connecting ring (5) is arranged below the top ring (4). A main valve body (6) is arranged below the connecting ring (5). An upper steel wire ring (7) is arranged at the upper portion of the inside of the main valve body (6). A distributing pipe (8) is arranged on the upper steel wire ring (7). A lower steel wire ring (9) is arranged at the bottom of the distributing pipe (8). The upper steel wire ring (7) is fixed in a small hole of the main valve body (6). The lower steel wire ring (9) is fixed in a small hole formed in the inner ring rotation disc (12). A double-layer spiral retainer ring (11) is arranged below the upper steel wire ring (7). Notches (13) are formed at two ends of the double-layer spiral retainer ring (11). An arc-shaped hole (14) is formed in the middle of the main valve body (6). The handle (3) connected to the inner ring rotation disc (12) is movable in the arc-shaped hole (14) of the main valve body (6).