초록 ▼

A vacuum container has a vessel and an installed air extraction device covering the vessel. The installed air extraction device has a cap, an air extraction device disposed in the cap, and an air inlet valve passing through a center of the cap. The cap has an inner cover, an outer cover, and a hollo

A vacuum container has a vessel and an installed air extraction device covering the vessel. The installed air extraction device has a cap, an air extraction device disposed in the cap, and an air inlet valve passing through a center of the cap. The cap has an inner cover, an outer cover, and a hollow interior defined between the inner cover and the outer cover. An inner sleeve extends downward from the center portion of the outer cover. A spring encloses the middle portion of the air inlet valve. Another spring encloses the inner sleeve.

대표청구항 ▼

A vacuum container comprising: a vessel and an installed air extraction device covering the vessel, the installed air extraction device having a cap, an air extraction device disposed in the cap, and an air inlet valve passing through a center of the cap, the cap having an inner cover, an outer cove

A vacuum container comprising: a vessel and an installed air extraction device covering the vessel, the installed air extraction device having a cap, an air extraction device disposed in the cap, and an air inlet valve passing through a center of the cap, the cap having an inner cover, an outer cover, and a hollow interior defined between the inner cover and the outer cover, an extending sleeve extending downward from a periphery edge of the outer cover to enclose an upper rim of the vessel, a plurality of first vents formed on a center portion of the inner cover, a plurality of third vents formed on a center portion of the outer cover, a plurality of grooves formed on the outer cover near the corresponding first vents, an inner sleeve extending downward from the center portion of the outer cover, the air extraction device having a hollow press plate disposed on a top of the outer cover, a cylinder seat extending downward from the hollow press plate, a lower disk disposed at a bottom of the cylinder seat, a lining cap flaring downward from the cylinder seat to the extending sleeve, a retaining ring surrounding an upper portion of the cylinder seat, a plurality of ribs extending upward from the retaining ring to abut a periphery of the cylinder seat, and a plurality of guide blocks disposed beneath the hollow press plate to face the corresponding ribs, two slide blocks disposed between the inner cover and the lining cap pivotally, each of the slide blocks having a first end contacting the lining cap and a second end contacting the lower disk, a first recess ring surrounding the cylinder seat, the first recess ring having a recess to receive a first choke ring, the first choke ring contacting the inner sleeve, a plurality of first air passages passing through the first recess ring, a hollow tube extending upward from the lower disk, a first spring disposed between the hollow press plate and the hollow tube, a plurality of second vents formed on a lower portion of the hollow tube, a second spring disposed between the outer cover and the lining cap to surround the inner sleeve, a second recess ring formed in an upper inner periphery of the lining cap, the second recess ring having a recess to receive a second choke ring, the second choke ring contacting the inner sleeve, a plurality of second air passages passing through the second recess ring, a third recess ring formed on an outer rim of the lining cap, the third recess ring having a recess to receive a third choke ring, the third choke ring contacting the extending sleeve, a plurality of third air passages passing through the third recess ring, two support plates extending upward from the inner cover to support the corresponding slide blocks pivotally, each of the ribs having two first bevels to form an upper end, the ribs inserted in the corresponding grooves, each of the guide blocks having two second bevels to form a lower end, the hollow press plate having a periphery flap, a check ring disposed beneath the hollow press plate, the air inlet valve having a plug plate disposed in a bottom end of the hollow tube and a push bar passing through the hollow press plate and the check ring to be inserted in the hollow tube, the check ring contacting the first spring, and wherein the hollow press plate is pressed downward to drive the first spring to move downward and the first choke ring to move downward, the first choke ring blocks a spacing between the inner sleeve and the first recess ring, the ribs moves downward along the corresponding grooves, the second end of each of the slide blocks moves downward, the first end of each of the slide blocks moves downward to push the lining cap upward, the second choke ring blocks a gap between the inner sleeve and the second recess ring, the third choke ring blocks an interval between the extending sleeve and the third recess ring, the check ring blocks a clearance between the hollow press plate and the push bar, an upward motion of the lining cap produces a suction for the air in the vessel, the air in the vessel passes through the first vents to push the plug plate upward, the air enters the hollow interior via the second vents, and the plug plate plugs the first vents while the vessel is in vacuum.