Ruler box for accounting teaching

The utility model discloses a ruler box for accounting teaching. The ruler box comprises a right cover and a left cover, wherein the right cover and the left cover are respectively a hollowed frame and are connected with each other through a hinge. Surrounding edges are arranged on the same sides of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SUN QINGJUAN, YANG YANPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES FOR WRITING OR DRAWING ARTICLES FOR WRITING OR DRAWING UPON BUREAU ACCESSORIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING WRITING OR DRAWING IMPLEMENTS
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Beschreibung
Zusammenfassung:	The utility model discloses a ruler box for accounting teaching. The ruler box comprises a right cover and a left cover, wherein the right cover and the left cover are respectively a hollowed frame and are connected with each other through a hinge. Surrounding edges are arranged on the same sides of the right cover and the left cover, so that the right cover and the left cover form a box body. Connection buckles are arranged on the edge of the other side of the right cover and the other side of the left cover respectively. Ruler sides are arranged on the edge of the right cover and the edge of the left cover respectively. Sliding grooves are formed in the two sides of the inner side of the right cover, and a plurality of grid rulers are arranged in the sliding grooves. A protractor and a goniometer are arranged in the middle of the left cover, one end of the goniometer is connected with the right cover through a hinge pin, and the other end of the goniometer is arranged in a sliding groove of the protractor.