CN2260355Y - Quick looking-up disc - Google Patents

Abstract

The utility model relates to a quick query rotating disk, which is composed of an A disk, a B disk and an information disk, and the information disk is arranged between the A disk and the B disk. The center of the A disk and the B disk is respectively provided with a circular hole, the periphery of the circular hole is provided with decentralized openings, the information disk is printed with theorems, definitions, formulas, etc., and the information disk is provided with a disk handle. The utility model has the advantages of simple structure, low cost, convenient query, high query speed, convenient carrying and convenient storage.

Description

Quick looking-up disc

The utility model belongs to the mathematical tool technical field, is a kind of Quick looking-up disc.

The student learns to digest outside the learning content in the teaching for a long time, need to theorem, definition, formula, verse, etc. content learn that often turn over the book back one back of the body, to strengthening memory, skilled learning content is good by heart.At present, it is a lot of that the student carries on the back content such as the theorem, definition, formula of note, and it is very inconvenient to turn over book back note.

The purpose of this utility model provides a kind of fast rotating disk of searching easily and fast of looking into.

The purpose of this utility model is achieved in that it is made up of A face, B face, information disk.Press from both sides information disk between A face and B face, there is circular hole at A face and B face center, and A face, B face, information disk be overall plastic envelope respectively, and there is axle at the center or does not have axle, and circular has dispersed opening more than two.Be printed with theorem, definition, formula on the information disk two sides, mouthful determine, verse, grammer, geography, history, the plate handle is arranged on the information disk.

The utility model is simple in structure, cost is low, search convenience, seek rate is fast, is easy to carry, collects.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model A face view.

Fig. 3 is the utility model information disk view.

Fig. 4 is the utility model B face view.

Be described as follows as figure grade: 1 circular hole, 2A face, 3 information disk, 4B face, 5 plates handle, 6 openings.

As shown in the figure, the utility model is by A face 2, B face 4, information disk 3 is formed, folder information disk 3 between A face 2 and B face 4, there is circular hole 1 at A face 2 and B face 4 centers, A face 2 and B face 4, information disk 3 be overall plastic envelope respectively, and the center can or not have axle with axle, and dispersed opening 6 more than two is arranged around the circular hole 1, be printed with information such as theorem, definition, formula, pithy formula, verse, grammer, geography, history on the information disk 3, the plate handle is arranged on the information disk 3.

When practical, see the hole in-list earlier, in the relevant position that information disk is forwarded to catalogue, make catalogue and content consistent, for example, see " fractional exponent power ", information disk is forwarded to the dispersed opening part of " fractional exponent power " corresponding A face, opening part demonstrates " $a\frac{m}{n}=n\sqrt{\mathrm{am}}(a>0,m>1)$ ″。

Claims (1)

1, a kind of Quick looking-up disc, it is made up of A face, B face, information disk, it is characterized in that, between A face and B face, press from both sides information disk, there is circular hole at A face and B face center, and A face, B face be overall plastic envelope respectively, and circular has dispersed opening more than two, be printed with theorem, definition, formula, pithy formula, verse, geography, history on the information disk two sides, the plate handle is arranged on the information disk.

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