VACUUM-PUMPING FRESH-KEEPING EQUIPMENT FOR FOOD CONTAINER

The utility model discloses a fresh-keeping device for food, being characterized in that the device comprises a vacuum pump and a one-way control valve body. A one-way air outlet valve is arranged on one side of the bottom of the pump tube and a push-and-pull handle, a link bar and a piston are arra...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	ZHANG GUANGPEI
Format:	Patent
Sprache:	eng
Schlagworte:	FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
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Beschreibung
Zusammenfassung:	The utility model discloses a fresh-keeping device for food, being characterized in that the device comprises a vacuum pump and a one-way control valve body. A one-way air outlet valve is arranged on one side of the bottom of the pump tube and a push-and-pull handle, a link bar and a piston are arranged in the pump tube. Part of the one-way control valve body is composed of a stop pipe sheathed with a spring, a vertically movable valve core and a seal gasket. Through the repeated raising and pushing operations, the vacuum pumping effect is achieved to keep the food fresh.