Tank cover with pressure adjusting function and milk powder can

• Main Authors: QI MINGZE, MA HAIHUI
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2023
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The utility model discloses an exhaust moisture-proof cover for a milk powder can, which comprises a cover body, the cover body comprises an upper cover and an upper cover ring, a pressure adjusting unit is arranged on the cover body, the pressure adjusting unit comprises a vacuumizing mechanism and a pressurizing mechanism, the vacuumizing mechanism comprises an exhaust air bag, a one-way exhaust valve A and a one-way exhaust valve B, the exhaust air bag is installed on the outer side of the upper cover in a through mode, the one-way exhaust valve A is arranged on the exhaust air bag, and the one-way exhaust valve B is arranged on the inner side of the upper cover and forms a one-way airflow channel with the exhaust air bag. The pressurizing mechanism comprises a pressurizing button, a sealing piece and a telescopic reset piece, the pressurizing button is installed on the outer side of the upper cover in a penetrating mode, the sealing piece is connected with the pressurizing button and located on the inner