FIELD: pumping equipment.
SUBSTANCE: invention relates to a pumping unit (90) and a container (900) with the function of releasing the contents (800), and the pumping unit (90) contains a pumping part (1) and a pressure rod (2), while the pumping part (1) contains an inner housing (12) having an upper wall (120), the first side wall (121) and the second side wall (122), and the outer surface of the first side wall (121) of the inner housing, the inner surface of the second side wall (122) of the inner housing and the upper wall (120) of the inner housing form the first chamber (1a) having the first hole (1b), the first air cavity (12a) of the first chamber (1a) is a sealed cavity formed jointly by the piston part (21), the upper wall (120) of the inner housing, the outer surface of the first side wall (121) of the inner housing and the inner surface of the second side wall (122) of the inner housing. The container (900) with the function of releasing the contents (800) contains a pumping unit (90).
EFFECT: expansion of the range of pumping equipment.
10 cl, 29 dwg
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Authors
Dates
2022-09-30—Published
2020-06-09—Filed