| 摘要 |
<p>A free-of-bearing rotational positioning device for a dewatering basket of a non-treading type wringer bucket, comprising: a bucket body (10) having a dewatering basket (20) having a driven seat (21) at the center of the bottom thereof. The bottom of the driven seat (21) includes a shaft holder (30) made of non-metal material. In mounting the dewatering basket (20), the driven seat (21) fits from top to bottom over the connection part of the support shaft (50). After the lower sleeve (30a) passes through positioning element (40) in a compression manner, the positioning surface (421) of the positioning element (40) is stretched into the engagement groove (36) at the center of the shaft holder (30) when returning to its original shape.
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