US 11,891,228 B2
Automatic suction sealing box and working method thereof
Tianyi Zhou, Liyang (CN); Jiancai Yang, Liyang (CN); Pingping Lv, Liyang (CN); and Caixia Chen, Liyang (CN)
Assigned to CHANGZHOU BESTFULL MOULD & PLASTICS CO., LTD, Liyang (CN)
Filed by CHANGZHOU BESTFULL MOULD & PLASTICS CO., LTD, Liyang (CN)
Filed on Jul. 16, 2019, as Appl. No. 16/513,596.
Claims priority of application No. 201821898495.4 (CN), filed on Nov. 19, 2018.
Prior Publication US 2020/0156848 A1, May 21, 2020
Int. Cl. B65D 81/20 (2006.01); G01L 19/14 (2006.01); B65D 51/16 (2006.01); G05B 19/042 (2006.01); G06F 3/041 (2006.01); G09G 3/36 (2006.01); B65D 51/24 (2006.01)
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
OG exemplary drawing
 
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.