| 摘要 |
An electric projection screen roller structure includes a rolling shaft and an inserting piece. The rolling shaft is provided with a sliding groove in one side surface, a flanged strip and a hollow are formed adjacent to the sliding groove, and a slant inserting block is provided adjacent to the hollow. A plurality of notches and flanged portions are provided adjacent to the slant inserting block. The inserting piece is provided with a flanged block on one side, a hollow s formed in the interior, a slant hook portion is provided at one side of the hollow, and a plurality of notches and flanged portions are provided adjacent to the slant hook portion.
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