Patent ID: 11891228
Assignee: CHANGZHOU BESTFULL MOULD & PLASTICS CO., LTD
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
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.