Retractable barrier for swimming pool, has deployment device including hydraulic immobilizing unit immobilizing post to occupy locking and free states, where post is immobilized in locking state and post is movable in free state

摘要

The barrier has a deployment device including a post (22) that is displaced outside a sheath (24) using fluid e.g. compressed gas. The deployment device includes a hydraulic immobilizing unit (34) immobilizing in translation the post to occupy locking and free states, where the post is immobilized in the locking state and the post is movable in the free state. A conduit provides communication of an incompressible fluid reservoir with a vertical tube.