Patent ID: 11905747
Assignee: WIWYNN CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC E  B  F | IPC B  E  F

Claim 3:
4. An airtight device of preventing gaseous matter from leakage, comprising:
a housing;
a cover movably assembled with the housing; and
a liftable hinge mechanism connected to the housing and the cover, the liftable hinge mechanism comprising:
a base disposed on the housing and having a narrow slot;
a connecting component connected to the cover and having an axle hole;
a pin slidably passing through the narrow slot and rotatably inserting into the axle hole, multi-dimensionally liftable motion of the connecting component relative to the base being generated via a movement of the pin inside the narrow slot and the axle hole, so as to seal the housing by the cover for preventing the gaseous matter inside the housing from leakage; and
a constraining component disposed between the base and the connecting component, two opposite surfaces of the constraining component respectively abut against the base and the connecting component in a slidable manner.