Patent ID: 7658572
Filing Date: 2010-02-09
Classification: E02B

Abstract:
1. A tide apparatus comprising: an underground pit formed under a soil foundation face; a water inflow port and a tide plate operation opening for vertically penetrating into a ceiling wall of the underground pit; a tide plate linked to a floating member at the bottom end thereof in the underground pit for floating together with the floating member by a buoyancy of water; wherein the tide plate can protrude upward from the soil foundation face through the tide plate operation opening by making water flow into the underground pit via the inflow port of the ceiling wall; a storage tank connected to the underground pit for normally storing water of a constant amount; a connecting pipe for connecting between the underground pit and the storage tank; and a seismograph releasing apparatus formed on the connecting pipe for sensing a shake in an earthquake and for releasing the water stored in the storage tank into the underground pit; wherein the tide plate can protrude upward from the soil foundation face by operating the seismograph releasing apparatus in an earthquake to make the water stored in the storage tank flow into the underground pit via the connecting pipe.