Switching device of manometer

The utility model provides a switching device of manometer, include: casing, hollow valve seat, pull rod, the elastic component resets, the inside of casing is run through and is provided with first passageway, and the passageway inner wall that is close to the first port of first passageway is prov...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SHANG YUSEN, ZOU GUANGGUI, WU ZHIJUN, YAN NIANDONG, DANG BING, XU YINYAN, LIANG YULEI, YUAN KUNPENG, AI HAITI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MEASURING MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The utility model provides a switching device of manometer, include: casing, hollow valve seat, pull rod, the elastic component resets, the inside of casing is run through and is provided with first passageway, and the passageway inner wall that is close to the first port of first passageway is provided with the hollow valve seat, and portable the inserting of pull rod is located in the first passageway, the fixed elastic component that resets that is provided with of passageway inner wall that is close to the second port of first passageway, the inside of casing be provided with with first passageway vertically second channel, when the end of pull rod received the pulling force, the head end of pull rod removed to the second port of first passageway for first passageway and second channel intercommunication, when the head end of pull rod removed to the second port of first passageway, the elastic component that resets was in compression state, when the pulling force that the end received of pull rod was elim