| 摘要 |
PURPOSE: A switch box elevating device is provided to improve the durability of a watertight box by forming the watertight box with a laying box in one body. CONSTITUTION: A laying box(200) is a rectangular parallelepiped reinforced concrete structure. A watertight box(202) is arranged inside the laying box. The watertight box is an iron or a synthetic resin structure. A ground plate(201) is attached to the outer bottom of the laying box. A facility box is arranged inside the watertight box. A hydraulic cylinder is arranged in the inner bottom of the laying box in order to lift the facility box. A heat collecting pipe(120) is arranged inside the laying box. A heat radiation pipe(110) is arranged outside the laying box in order to be communicated with the heat collecting pipe. |
