Bidirectional torsion differentiation rotating shaft structure and POS machine

Abstract

The utility model relates to a two -way torsion differentiation pivot structure, including fixed axle and rotating movable element, the outer peripheral surface of fixed axle is provided with torsion tooth, one end of rotating movable element is provided with rotation connecting portion, the rotation connecting portion surrounds and is provided in the periphery of fixed axle, and the inner peripheral surface of rotation connecting portion is continuously provided with a plurality of torsion grooves, the radial angle of first inner side is less than the radial angle of second inner side, still relate to a POS machine, including base, support frame, display and two -way torsion differentiation pivot structure, and two -way torsion differentiation pivot structure is installed between support frame and base, the utility model discloses utilize the torsion groove of 'unsymmetrical groove type' to make pivot in first rotation direction output big torsion, second rotation direction output small torsion, thereby realize the feeling of lifting differentiation smaller with pure mechanical mode, save counterweight, tension spring or air support and so on auxiliary spare, reduce the number of parts and cost.

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