Boom-adjustable horizontal hydraulic jack with a pull-lock mechanism
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United States of America Patent
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Dec 9, 2014
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N/A
app pub date -
Nov 30, 2012
filing date -
Dec 7, 2011
priority date (Note) -
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Abstract
A boom-adjustable horizontal hydraulic jack with a pull-lock mechanism belongs to a lifting apparatus. The jack comprises a chassis, a hydraulic assembly, a press handle, a boom assembly, and a link rod assembly, wherein, the boom assembly comprises a bearer, a forearm, and a rear arm; the link rod assembly comprises a first link rod and a second link rod; wherein, a pull-lock mechanism is additionally arranged on the bearer, and comprises a guide rod seat, a guide rod, a pull handle, a guide sleeve, a steel rope, a dialing plate shaft, and a locking pin shaft.
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