| 摘要 |
PURPOSE: A lamp elevating apparatus is provided to rapidly move an elevating plate by using a main chain, a branch chain, and a hoist. CONSTITUTION: A stay tube(10) is installed in the surface. A hoist(40) is arranged outside the stay tube. The hoist comprises a driving shaft and a drive motor. One end of a main chain(41) is exhausted to one side of the hoist. The other end of the main chain is connected to a chain storing box(50). A branch chain(42) is connected to one end of the main chain. The branch chain is branched into a four branch in a connection part of the main chain. A plurality of lamps are installed on an elevating plate(30). |
