| 摘要 |
The invention concerns a device for locking an axially mobile actuating and freely rotating head of a pump whereof the body is mounted on the neck of a reservoir of liquid product via a connecting socket. The invention is characterized in that it comprises an intercalated ring mounted on top of the pump body and whereof the inner side wall is provided with at least one longitudinal guiding groove capable of receiving, through rotation of the head, at least one rib bone by an inner coaxial sleeve integral with the head.
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