SIA OpenIR  > 沈阳自动化所知识产出(2000年前)
Alternative TitleGas-pressure defining device
张世祥; 王继善
Rights Holder中国科学院沈阳自动化研究所
Patent Agent中国科学院沈阳专利事务所
Other AbstractThe utility model belongs to a pneumatic pressure testing instrument, which is mainly used for the static test of various pressure differential pressure transducers. The middle lower part of the cavity of a casing composing an air chamber 2 is provided with an accordion tube shape air chamber 1 whose lower opening is fixedly connected with the inner bottom of the casing, and the lower cover of the casing is provided with a positive pressure air nozzle and a negative pressure air nozzle which are communicated with the air chamber 1 and the air chamber 2 the middle part of a small accordion tube fixedly connected with the upper opening of thecorrugated air chamber 1 is provided with a screw nut provided with an inner screw thread and an outer guide groove. The lower end of the screw nut is provided with a screw cap isolated from the air chamber 1, and the tail end of a screw rod screwed and arranged on the upper end of the screw nut is fixedly screwed with a mechanical counter positioned above a spacing cover. The utility model is suitable for the onsite test of field measurement signal.
PCT Attributes
Application Date1994-12-21
Date Available1996-04-10
Application NumberCN94231571.5
Open (Notice) NumberCN2224413Y
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
张世祥,王继善. 气压定值器[P]. 1996-04-10.
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