Technique abacus

Abstract

The invention relates to a craftwork abacus which is composed of frame, axes, beam and bead, the bead is installed through the axes. The craftwork abacus has innovation point that outline face generatrix shape of the abacus is ellipse arch shape. A plastic bushing is nested in the abacus axel hole coaxially. The craftwork abacus has scientific and reasonable structure design, when the bead is dialed, finger locating is convenient, touch sense is better, the bead operation is rapid and smooth. The abacus has high precision of whole assembly and better intension, is wear well, has higher reserve value at the same time has better practicability.

Description

technical field [0001] The invention relates to an abacus, in particular to a technical abacus. Background technique [0002] The abacus is a unique calculation tool in ancient China. Since the abacus has always been used to settle accounts since ancient times, the abacus is usually used by the Chinese to imply wealth and wealth. People often talk about "golden abacus" and "iron abacus" The metaphor described is the shrewdness of "counting in but not out". In ancient China, children hung on the sieve to ward off evil and avoid evil. In addition to scissors, hairpins, and mirrors, the abacus in it was also a mascot symbolizing wealth. Today, the abacus is widely used by computers and has gradually faded out of people's sight. However, it is precisely because of its strong cultural connotation that the abacus has gradually evolved into a decoration with strong craftsmanship and cultural representation in modern society. People decorate their living rooms or give gifts to rel...

AI Technical Summary

Problems solved by technology

Most of the existing abacus beads are in the shape of a lantern, and the outline of the generatrix on the outer edge in contact with the fingers is a smooth arc shape. This kind of abacus feels smoother when it is toggled, but because the outer edge outline of the arc shape is too smooth, its The contact surface between adjacent beads is relatively large, and the fingers generally move upwards from the lower part of the beads. As a result, the positioning of the fingers is not accurate enough, and it is easy to move two or more beads at the same time, causing inconvenience in use; For this reason, the shape of existing bead also has rhombus, and its radial direction is shaped on sharp salient angle, and this kind bead can be convenient to the location of staff when stirring, convenient and accurate stirring, but because too sharp also has caused bad touch. Good, long-term toggling will cause hand fatigue and pain

Moreover, the frames, crossbeams, and beads of the existing abacus are mostly wooden or plastic products, which are only suitable for daily use. need

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