Self-lockable opening and closing mechanism for vacuum cabin door
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United States of America Patent
Stats
-
Aug 30, 2016
Grant Date -
Jun 4, 2015
app pub date -
Dec 4, 2013
filing date -
Dec 4, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A self-lockable opening and closing mechanism includes a frame, a vacuum cabin door, a driving cylinder mounted in the frame, and a linkage mechanism formed of a horizontal lever, one or a pair of first bars, one or a pair of rotational levers, one or a pair of adjustment blocks, one or a pair of second bars, one or a pair of sliding blocks and one or a pair of valve rods and coupled between the driving cylinder and the linkage mechanism in such a manner that operating the driving cylinder drives the valve rods to move the vacuum cabin door between an open position and a close position, and a locking force is automatically produced to hold the vacuum cabin door in the close position against any reaction force, preventing the problem of failure or reduced effect in vacuum sealing.
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Family
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