OIL HYDRAULIC JACK FOR LIFTING SEPARATIVE SLAB WALL CASTING GANG FORM USING REINFORCING ROD ATTACHED DECK PLATE

摘要

PURPOSE: An oil hydraulic jack for a lifting separative slab wall casting gang form using a reinforcing rod attached deck plate is provided to easily pull a gang form though a thickness of a wall is varied. CONSTITUTION: An oil hydraulic jack(90) for lifting a gang form comprises: an oil hydraulic jack frame(91) to form a first hollow(96) to be filled oil(100) and a second hollow(97); a first cylinder(92) slid inside the second hollow by inserting therein, to form a third hollow(98) and protruded on the hydraulic jack frame; a second cylinder slid inside the third hollow by inserting therein and protruded on the first cylinder; an oil hydraulic cylinder(94) to form a fourth hollow(99) to be reciprocated a piston(95) and to pressurize the oil in the second hollow and the fourth hollow through the reciprocation of the piston by connecting the fourth hollow with the first hollow and the second hollow; and a changing portion to change the rotational motion of an electromotor to the rectilinear reciprocating motion by connecting the electromotor with the piston. Thereby, a building is economically and quickly constructed with the gang form in an inner wall.