| 摘要 |
PURPOSE: An air balance valve for a pillow is provided to facilitate air injection into the pillow or discharge air from the pillow. CONSTITUTION: An air balance valve for a pillow a valve body(46), a pin(48) for preventing air discharge, an O-ring(47), a spring(45), a pin(44) for air discharge, another O-ring(43), a push-button case(42), and a push-button(41). One side of the valve body is connected by inserting an air hose into a projected part, and the other side is connected by inserting an air pump into the projected part. The pin for preventing air discharge prevents air from discharging to outside the valve body. The O-ring inserted into the pin for preventing air discharge is combined in one side of the valve body with the pin for preventing air discharge in order to prevent air leaking. The spring gives elasticity to the push-button. The pin for air discharge has a protrusion in which a screw thread is formed. |
