| 摘要 |
<p>A buffer device is provided, which comprises a shaft sleeve (1), a blade (2) and a shaft (3). A cavity (11) is provided in the shaft sleeve (1) and two primary flanking columns (12,13) are set on the wall of the cavity (11). The shaft (3) is nested movably in the cavity (11) and contacts with the two primary flanking columns (12,13) to divide the cavity (11) into two big chambers. Viscous fluid is filled within a closed space formed by the cavity (11) and the shaft (3). Two secondary flanking columns (331,332) are set on both sides of the wall of the shaft (3), and the two secondary flanking columns (331,332) are held respectively in the two big chambers and contact with the wall of the cavity (11) to divide each big chamber into two small chambers (14,,16,15,17). Two through slots (3311,3321) are provided respectively on the two secondary flanking columns (331,332) and between the bottoms of the two through slots (3311,3321) there is an insert slot (333) penetrating through the shaft (3). The blade (2) is inserted movably in the insert slot (333) with its two ends set with fit parts (22,23) which fit with the corresponding through slots (3311,3321) to make the fluid in the corresponding two small chambers flow in one direction along the through slots (3311,3321). The device can make the cover of the toilet open easily and fall slowly.</p> |
