| 摘要 |
<p>A top fixing device for a collapsible semicircular tent framework, comprises: a top connecting piece (1) provided at the top of the framework, a set of assistant support bars (5) connected to the top connecting piece (1) radially, a shank (3) under the top connecting piece (1), a slide unit (4) located on the shank (3), a group of foldable bars (2) radially pivoted to the slide unit (4) with the amount coinciding with that of the assistant support bars (5), and a spring (6) set between the top connecting piece (1) and the slide unit (4). The spring (6) is in compressive state after the tent is collapsed.</p> |
