Foldable hydraulic pressure cat ladder of semitrailer

The utility model discloses a foldable hydraulic pressure cat ladder of semitrailer, side about the last lower extreme of anterior segment cat ladder assembly, about the lower extreme of back end cat ladder assembly about the upper end of side and tailboard assembly the side all the welding have two fixed gussets, the centre bore of the fixed gusset of the fixed gusset of the upper end of anterior segment cat ladder assembly and the lower extreme of back end cat ladder assembly aligns, and in the centre bore driven-in pin axle no. 1, the centre bore of the fixed gusset of the fixed gusset of the lower extreme of anterior segment cat ladder assembly and the upper end of tailboard assembly aligns, and in the centre bore driven-in pin axle no. 2, still install the cat ladder landing leg on round pin spool, the cat ladder landing leg lies in sells a middle part of spool one, the welding has a plurality of cat ladders anticollision piece on the said anterior segment cat ladder assembly, installs the stand hydro-cylinder on anterior segment cat ladder assembly the utility model discloses be equipped with cat ladder anticollision piece, in the time of can effectively preventing to transport, anterior segment cat ladder assembly striking back end cat ladder assembly, simple structure, reasonable in design, transportation safety is reliable