| 摘要 |
Water-saving device for flush toilet. A water-saving device as shown and described herein comprises a frame which can be mounted on the exterior of a conventional toilet water tank, a vertical shaft which is integrally formed on the frame for receiving a reciprocable lever mechanism, and a flush lever mechanism which comprises a vertical member which reciprocate vertically in the shaft and a horizontal extension which extends from the vertical member to the outside end of a conventional toilet tank flush handle. As installed, the outside end of this extension is positioned just above the outer end of the flush handle. When the toilet is not in use, the outer end of the extension will be positioned just above the flush handle. To use the device, a user presses the flush lever mechanism downwardly until it is stopped by a gap adjustment screw against the bias of a compression spring, so that the extension engages the flush handle, actuating the toilet tank flush valve to a partially open position. When the user releases the flush lever mechanism, the flush lever mechanism will return to its normal upward position, allowing the flush handle to return to its normal position so that the toilet tank flush valve closes. A full flush can be obtained when desired either using the water-saving device herein (and holding it down long enough to obtain a full flush) or by actuating the flush handle in the usual manner without using the water-saving device. This invention provides a simple, reliable, easy-to-install, and easy-to-use device which permits appreciable water savings.
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