30-01-2020 дата публикации
Номер: US20200031544A1
Принадлежит:
Disclosed is a closed container cover, in which an upper plate moves down in accordance with rotation of a rotary knob and pushes outward a packing portion provided on a circumference of a lower plate, thereby having advantages that an inside of a container main body is easily closed by a simple operation, and production processes are decreased with the minimum elements to increase efficiencies of the production and the processes and significantly reduce production costs and lowering a selling price. 1100200200100. A closed container cover , which is coupled to an upper portion of a quadrangular container main body and closes an inside of the container main body , the closed container cover comprising:{'b': 110', '111', '112', '111, 'an upper plate configured to comprise a coupling hole formed in a center portion thereof, and a stepped portion formed on an inner surface of the coupling hole ;'}{'b': 120', '111', '121', '112', '122, 'a rotary knob configured to be inserted in the coupling hole , and comprise a wing formed on an upper outer surface thereof and seated on the stepped portion , and a screw thread formed an a lower outer surface;'}{'b': 130', '110', '131', '120', '132, 'a lower plate configured to couple with the upper plate , and comprise a tap coupling groove formed in a center portion thereof and screw-coupling with the rotary knob , and an insertion groove formed on an outer surface thereof; and'}{'b': 140', '132, 'a packing portion configured to be made of an elastic material and inserted in the insertion groove , and comprise a circumferential surface tapering outward,'}{'b': 110', '110', '140', '140', '100', '120', '130', '210', '200, 'wherein the upper plate moves down so that an outer surface of the upper plate can press an inner surface of the packing portion and an outer surface of the packing portion can be in contract with an inner surface of the container main body if the rotary knob is rotated in a state that the lower plate is seated on ...
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