| 摘要 |
A fork mechanism comprises two seats (1) with fork pins (108), the two seats connect each other by a hinge (2). One seat is disposed with a fastener (3) with a bayonet; another seat is disposed with a supporting slice (4). A thrust bar (5) capable of sliding along the hinge shaft is disposed on the supporting slice, and the thrust bar is disposed with a clipping slice (6) matching the bayonet of the fastener.
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