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Lock knives
- May 10, 2018 -

A lock card folding knife still has a knife handle, a blade articulated with a knife, and the end of the hinge joint of the blade is circular arc. The knife handles the starting point or end of the arc shape with a concave shaped opening. The process of folding the blade has a sliding groove corresponding to the arc shape and the concave shape. The slot has a pin corresponding to the circular arc and concave shape and can be dialed. A spring with a pin acting on a circular arc and a concave bayonet is connected between the blade and the blade. The finger pushes the pin to leave the concave hole, and moves the pin to drive the blade to slide along the circular arc of the knife handle. After opening or folding the blade, the pin is stuck into a concave opening under the action of the spring and fixed.

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