Separable vacuum preservation device

Abstract

A separable vacuum preservation device includes a base body and a cover body rotatably connected to the base body, and the base body and the cover body form a sealed cavity when they are closed. The separable vacuum preservation device further includes a hand-held unit, and the hand-held unit has a vacuum mechanism to draw out air. The base body is provided with an installation part for accommodating the hand-held unit, and the base body is provided with an air extraction pipe connecting the sealed cavity and the vacuum mechanism. The separable vacuum preservation device has a hand-held unit which may be used cooperatively with the base body to draw out air from storage saver bag, or the hand-held unit may be used independently to draw out air from other fresh-keeping containers such as storage box, storage bottle, and so on.

What is claimed is: 
     
         1 . A separable vacuum preservation device, comprising a base body and a cover body rotatably connected to the base body,
 wherein the base body and the cover body form a sealed cavity when they are closed; the separable vacuum preservation device further comprises a hand-held unit, and the hand-held unit has a vacuum mechanism to draw out air, the base body is provided with an installation part for accommodating the hand-held unit, and the base body is provided with an air extraction pipe connecting the sealed cavity and the vacuum mechanism; wherein the base body is provided with a heat sealing mechanism beside the sealing cavity, the hand-held unit is provided with a sealing button for controlling the heat sealing mechanism and a vacuum button for controlling the vacuum mechanism; the base body and cover body are respectively provided with an upper sealing foam and a lower sealing foam at corresponding positions;   wherein, the connection part has a first contact fixedly provided on a bottom of the hand-held unit, and a second contact is fixedly provided in the installation part when the hand-held unit is installed in the installation part, the first contact and the second contact come in close contact with each other, thus the hand-held unit quickly electrically connected to the base body.   
     
     
         2 . The separable vacuum preservation device according to  claim 1 , wherein the hand-held unit comprises a casing and an air extraction nozzle, the vacuum mechanism is configured inside the casing, the air extraction nozzle is fixedly connected to an end of the casing and is configured to connect the vacuum mechanism with a fresh-keeping container. 
     
     
         3 . The separable vacuum preservation device according to  claim 2 , wherein a side of the base body is provided with an installation recess, and the installation recess is provided with an avoidance concave part at a position corresponding to the air extraction nozzle and an installation hole for installing the air extraction pipe, the installation recess and the avoidance concave part form the installation part. 
     
     
         4 . The separable vacuum preservation device according to  claim 1 , wherein the vacuum mechanism is a vacuum pump. 
     
     
         5 . The separable vacuum preservation device according to  claim 1 , wherein the hand-held unit has a connection part, the base body is connectable to an external power supply and is electrically connected to the hand-held unit through the connection part. 
     
     
         6 . (canceled) 
     
     
         7 . The separable vacuum preservation device according to  claim 4 , wherein a battery is provided in the hand-held unit, and the base body is connected to the battery through the connection part, so as to charge the battery. 
     
     
         8 . (canceled) 
     
     
         9 . (canceled)