HYDRAULIC HEIGHT ADJUSTER

摘要

PURPOSE: A hydraulic height adjuster is provided to adjust the height of a washstand conveniently according to the physical conditions of a user by reciprocating a piston by water pressure of tap water exactly and to maximize convenience on use as well as structure stability by adjusting height simply and exactly. CONSTITUTION: The hydraulic height adjuster comprises: a reciprocating cylinder(20) installed vertically between the lower part of a sink or a washstand(10) and a floor(15) to reciprocate the sink or the washstand(10) by reciprocating a piston rod(21) by the supply and discharge of tap water; a valve body(30) fixed to the lower part of the sink or the washstand(10) to supply tap water to piston operating pipes(25,26) connected to one side of the reciprocating cylinder(20) through a water-supply pipe(23) by the rotation of a valve spool(32) according to the rotation of a valve knob(39) and to discharge tap water by opposite piston operating pipes(26,25) to reciprocate the piston rod(21) of the reciprocating cylinder(20) connected to the lower part of the washstand(10); a drainpipe(14) connected with the water-supply pipe(23), a water pipe(12) and the discharge pipe(24) to discharge tap water; and decorative covers(16,17) installed to be projected downward to the front and side of the sink or the washstand(10) and reciprocated outward.