爪销
The blades are positioned on the large handle by a rotating shaft screw, and the pushing pawl and a pawl torsion spring are connected with the small handle through the pawl pin.
小手柄上通过棘爪销柱连接有推进棘爪及棘爪扭簧,推进棘爪受到棘爪扭簧的压力始终压制在刀片的齿上;
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