A SAFE VALVE HAVING A SUB-SPRING

• Main Authors: EOM, TAE JIN, KIM, DANG JU
• Format: Patent
• Language: English; Korean
• Published: 21.01.2014
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

A safe valve having an auxiliary spring is provided. The present invention relates to a safe valve which includes a valve body including an inlet and an outlet; a plug which is moved upward and downward inside the valve body in order to open and close the inlet; a spring which elastically presses the plug; a gear unit; and an auxiliary spring. A rack perpendicularly formed on the plug and a pinion engaged with the rack are formed on a gear shaft extended from the inside of the valve body to be rotated. A locking bar extended from one side of the pinion is formed on the gear unit to be locked by a locking protrusion protruding from the top surface of the plug so that the gear unit rotates the rack moved upward and downward with the plug and the engaged pinion. The auxiliary spring is arranged between a driving shaft elastically supported by the spring and plug. The locking bar which is moved downward and rotated when the plug is moved upward is locked and connected by the locking protrusion of the plug. [Reference numerals] (AA) Outflow; (BB) Inflow