| 摘要 |
A raisable pedestal includes an enclosed housing fixed to a ground surface; guide rods mounted within the housing; an inner shell mounted for movement along the guide rods between a retracted position entirely within the housing and an extended position extending out from the housing, the inner shell including an arrangement for supporting electronic components in a manner to render the electronic components accessible when the inner shell extends out from the housing; a piston for moving the inner shell along the guide rods between the retracted and extended positions; a rain sensor mounted on an upper end of the housing for detecting precipitation; and a control connected with the sensor for controlling the piston to move the inner shell to the retracted position when the sensor detects precipitation.
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