| 摘要 |
The adjustable height or depth floor system 40 comprises: a buoyant or floating floor 9 variable in height relative to the pool bottom8; a hydraulic system 1 and a sealing arrangement 20. The hydraulic system comprises a cylinder 10 comprising a barrel 11 having a head 15; a cap 17 and a piston 16 slidably arranged in the barrel. The sealing arrangement slidably encloses a part of the piston rod remote from the cylinder head, the sealing being connected to an opening which extends from the inside 3 to the outside 4 of a peripheral wall in a swimming pool. The sealing arrangement prevents leakage to the exterior side of the pool. The floor system comprises a movement transfer arrangement 41 such that motion of the piston rod is transferred to the floor height. Preferably the arrangement is a pulley system that converts horizontal piston movement to vertical floor movement. Also claimed is a hydraulic system. |
