Water pump of hydraulic cylinder structure

Water pump of hydraulic cylinder structure includes: middle hydro -cylinder, middle hydro -cylinder both sides be the fixed jar that is equipped with respectively, and cavity during middle hydro -cylinder and both ends jar are equipped with respectively, a piston rod run through the setting at above -mentioned cavity intracavity, in the middle of the piston rod and both ends overlap respectively establish a piston with the aforesaid in three the cavity divide into six independent sealed cavities separately, middle piston falls into two chambeies with middle hydro -cylinder, the both ends piston falls into two chambeies with the both ends jar respectively, leans on the no pole chamber in the outside to be the water cavity, leans on the inboard pole chamber that has to be the air chamber, both ends jar cylinder bottom is equipped with into water piece and drainage piece respectively, the piece of intaking on be equipped with the check valve, simple structure, pressure ratio are big, the non -corrosibility can b