Whole horizontal hydraulic elevating gear of monospar one way

Whole horizontal hydraulic elevating gear of monospar one way relates to hydraulic pressure lift field, has solved the problem that can only realize that the single face promotes and can't promote the two -sided while of realization that current elevating gear exists. The device includes the steady rest, the tailwheel support, pass through two rotation hinges of hub connection respectively with steady rest and tailwheel support, two sides of rotating the hinge are fixed respectively at two girder centers, a plurality of crossbeams at two girder internal surfaces are fixed respectively at both ends, the lifting pull rod at steady rest lower surface and tailwheel support upper surface is fixed respectively at both ends, the hydraulic cylinder on first girder internal surface and lifting pull rod is fixed respectively at both ends, and hydraulic cylinder and lifting pull rod are located the coplanar, contained angle theta between hydraulic cylinder and the lifting pull rod satisfies: 15