| 摘要 |
A clamping unit comprising a base having a first jaw and a spike and the spike extends from the first jaw, and the first jaw has a first jaw spring recess. There is a second jaw having a second jaw spring recess. A torsion spring positioned in the first and second jaw spring recesses and attached to the first jaw and the second jaw, such that the torsion spring is disposed internal to the clamping unit. The first jaw has a crest and the second jaw has a trough and the crest of the first jaw is receivable in the trough of the second jaw and the torsion spring is for forcing the first and second jaws into a closed position.
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