Height -adjustable's scaffold frame

The utility model discloses a height -adjustable's scaffold frame aims at providing a height of adjusting the scaffold frame, satisfy different work condition under, to the scaffold frame of the various high demands of scaffold frame, its technical scheme main points are including roof and bottom plate, are equipped with two axisymmetric forked support between bottom plate and the roof, forked support's cross section is equipped with the pin joint, forked support includes head rod and second connecting rod, head rod and second connecting rod pass through the pin joint at the intermediate position and articulate, head rod one end is articulated with the roof, the other end and bottom plate sliding connection, and second connecting rod one end is articulated with the bottom plate, the other end and roof sliding connection, be equipped with first connecting axle between two head rods on the bottom plate, be equipped with the second connecting axle between two second connecting rods, be equipped with the drive ar