CPC B65D 81/2038 (2013.01) [B65D 51/1644 (2013.01); B65D 51/245 (2013.01); G01L 19/147 (2013.01); G05B 19/042 (2013.01); G05B 19/0426 (2013.01); B65D 2547/00 (2013.01); G05B 2219/25252 (2013.01); G06F 3/0412 (2013.01); G06F 3/0416 (2013.01); G09G 3/36 (2013.01); G09G 2354/00 (2013.01)] | 11 Claims |
1. An automatic air-extracting sealing box cover, comprising:
a bottom cover; and
a top cover that are mutually and detachably connected, wherein
the bottom cover and the top cover are connected to form a device chamber, and an automatic air-extracting apparatus is mounted in the device chamber; and
the automatic air-extracting apparatus comprises a pressure sensor; an air pump and a controller, wherein an air extracting opening of the air pump and a probe of the pressure sensor project out of a lower surface of the bottom cover; an output end of the pressure sensor is connected to a collection circuit, and an output end of the collection circuit is connected to a pressure signal input end of the controller; a control signal output end of the controller is connected to an on/off control end of the air pump.
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