| 摘要 |
PURPOSE:To raise the water shielding property of a gate by providing a hollow rubber confined with a liquid or a gas at the four sides of the gate. CONSTITUTION:A hollow rubber 2 confined with a liquid or a gas and a hollow rubber 3 for pressurization are provided at the rear four sides of the door 1 of a gate. The hollow rubber 3 is expanded by a pressure tube 5 so as to press the hollow rubber 2 onto a flow path 4. The hollow rubber 2 can easily follow the uneven surface of the flow path 4 because it is confined with a liquid, etc., so that even when the hollow rubber 2 is broken, the leakage of water at a stroke from the door 1 of the gate can be avoided by means of the hollow rubber 3. |
