Compartment and bottom door thereof
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United States of America Patent
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Jul 16, 2019
Grant Date -
Apr 20, 2017
app pub date -
May 8, 2015
filing date -
Nov 14, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A bottom door of a carriage includes a telescoping cylinder and at least two sets of door bodies, each set of the door body is provided with one set of driving mechanisms, each of the driving mechanisms includes a rotating shaft and a driving rod, and the rotating shaft is connected with the respective door body by the driving rod, to allow the door body to be driven to rotate when the rotating shaft rotates; each of the rotating shaft is driven to rotate by the telescoping cylinder, and at least two of the rotating shafts are configured to be driven to rotate successively by the telescoping cylinder.
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