| 摘要 |
A support for a pressure-sensitive elevated floor, comprising a support body, a supporting plate assembly, a membrane, and a containing ring. The support body has a base placed on the ground. The supporting plate assembly is set on the support body and has a lower plate and a cap, which enclose a pressure chamber filled with oil and sealed by an elastic ring. An accommodating chamber is cut into the lower plate at a central position, accommodating a contact switch. The membrane covers the accommodating chamber, being exposed to oil pressure in the pressure chamber. Upon increased oil pressure, the membrane is deformed downward, so that the contact switch is operated and a signal is generated. The containing plate fixes the membrane on the lower plate, having a central opening which allows oil pressure in the pressure chamber to reach the membrane at an exposed area thereof. By peripherally fixing the membrane on the lower plate, the membrane is prevented from loosening. By substituting another containing plate with a different central opening, the exposed area of the membrane and sensitivity thereof to pressure are varied.
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