| 摘要 |
The invention relates to a pump for flowable media, particularly a cosmetic pump, provided with a base (1), which can be mounted tightly on the opening of a container, a through-hole (9) in the base (1), which extends from the underside of the base through to its top side, a tube sleeve (12) extending upwards from the top side of the base (1) around the through-hole (9), a guide sleeve (15) likewise extending upwards from the top side of the base, a top part (2) guided on the guide sleeve (15) that can be depressed against a compression spring (16), a compression chamber (23) with an inlet valve (24) and an outlet valve (25), and an outlet channel (33) provided downstream of the outlet valve (25). In order to simplify the design of the pump, both the inlet valve (24) and the outlet valve (25) of the compression chamber (23) are designed as integrally moulded lip seals, where the medium is drawn into the compression chamber (23) by the upward travel of the top part (2) induced by spring force and forced out of the compression chamber (23) when the top part (2) is depressed.
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