Patent ID: 8297595
Filing Date: 2012-10-30
Classification: B66F

Abstract:
1. An adjustable hydraulic horizontal jack, comprising a frame ( 2 ), a hydraulic unit ( 1 ), a jib unit ( 3 ), link rods ( 4 ), and a handle ( 5 ); wherein, the jib unit ( 3 ) comprises a bracket ( 31 ), a front arm ( 32 ), a rear arm ( 33 ), a set pin ( 34 ), and a pin roll ( 35 ); the bracket ( 31 ) is hinged to one end of the front arm ( 32 ), the other end of the front arm ( 32 ) is hinged via the pin roll ( 35 ) to one end of the rear arm ( 33 ), and the other end of the rear arm ( 33 ) is pivotally attached to the frame ( 2 ); the link rods ( 4 ) comprise a first link rod ( 41 ), a second link rod ( 42 ), and a link rod pin ( 43 ), wherein, one end of the first link rod ( 41 ) is pivotally attached to the frame ( 2 ), the other end of the first link rod ( 41 ) is hinged via the link rod pin ( 43 ) to one end of the second link rod ( 42 ), and the other end of the second link rod ( 42 ) is hinged to the bracket ( 31 ); a connecting plate ( 6 ) is arranged between the front arm ( 32 ) and the second link rod ( 42 ), wherein, one end of the connecting plate ( 6 ) is hinged to the pin roll ( 35 ), and the other end of the connecting plate ( 6 ) is hinged to the link rod pin ( 43 ); the set pin ( 34 ) is configured to form a fixed joint between the bracket ( 31 ) and the front arm ( 32 ) when the jib and link rods are in a folded position, and to form a fixed joint between the front arm ( 32 ) and the rear arm ( 33 ) when the jib and link rods are in a normal position.