| 摘要 |
A canopy has a framework including a plurality of vertical poles and a roof frame. A height adjustment structure for adjusting the height of the roof frame includes a sliding sleeve disposed around each vertical pole, to which the roof frame is connected. The sleeve can slide along the pole so that a through hole on a sidewall of the sleeve is aligned with one of the holes provided on the vertical pole. A spring loaded press plate pivotally mounted on the sidewall of the sleeve has a locking pin at one end which can extend into the through hole on the sleeve and the hole on the pole to lock the sleeve at a desired height along the pole.
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