Slow -falling device

The utility model provides a slow -falling device, including casing, pivot, two blades and end cover, it has the damping oil still to fill. The blade passes through surface to surface contact with thecasing and realizes sealing oily effect, and the working face of pivot simultaneously is equipped with oil blanket curved surface and oil extraction curved surface, through row oil groove groove andoil extraction curved surface, realizes that slow -falling device falls rapidly at the in -process that falls soon. Compare the traditional handicraft, establish the oil drain hole promptly in the pivot, oil extraction curved surface structure is simpler, and processing is convenient. The utility model discloses a simple structure of blade, processing is convenient, the processing cost is low, intensity is high simultaneously, in the use, difficult wearing and tearing damage. 本实用新型提供种慢落装置，包括壳体、转轴、两个叶片和端盖，还填充有阻尼油。叶片与壳体通过面面接触实现封油效果，同时转轴工作面设有油封曲面和排油曲面，通过排油沟槽和排油曲面，实现慢落装置在快落过程中迅速下落。相比传统工艺，即在转轴上设排油孔，排油曲面结构更加简单，加工方便。本实用新型采用的叶