Vacuum food preserving box
A food preservation and vacuuming technology, which can be used in packaging under vacuum/special atmosphere, packaging objects under special gas conditions, special packaging objects, etc. It can solve problems such as poor sealing, inability to reset the valve, and short preservation time. , to achieve the effect of good preservation effect, good sealing performance and long preservation time
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[0010] The present invention relates to a vacuum food preservation box, as shown in Fig. 1- image 3 Shown, there is a fresh-keeping box body 15, connect box cover 13 on the box body, sealing ring 14 is installed between box body 15 and box cover 13, vacuum exhaust valve and deflation valve 12 are installed in the box cover, its main The technical feature is that the vacuum exhaust valve has a threaded valve seat 6 connected to the box cover 13, an elastic hemisphere 4 is installed on the threaded valve seat, and the threaded valve seat 6 also fixes the elastic hemisphere 4 in the valve chamber of the box cover 13 , the inner wall of the hemisphere 4 is equipped with a spring washer 5, and the top of the elastic hemisphere 4 and the spring washer 5 is shaped on a valve hole 16, and the upper valve plate 8 is arranged on the valve hole 16, and the valve plate fixed cover 3 is installed on the outer wall of the elastic hemisphere. Vent 17 is shaped on the fixed cover 3 of the va...
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Abstract
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