CN2116931U

CN2116931U - Multifunctional magnetic semicircular numeral (chinese character) abacus

Info

Publication number: CN2116931U
Application number: CN 92203892
Authority: CN
Inventors: 饶幸三
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-05
Filing date: 1992-03-05
Publication date: 1992-09-23

Abstract

The utility model provides a multifunctional magnetic semicircular numeral (Chinese character) abacus which is an improved abacus. The attraction force of the magnet magnetic field is used by the multifunctional magnetic semicircular numeral (Chinese character) abacus to stabilize the semicircle abacus beads on a piece of iron metal plate. A frame, a crossbeam, and a gear can be printed and drawn on the plate surface. The use of laying flat is the same as the use of vertically hanging on the wall that the beads can be shifted freely and the hand feeling is comfortable. The abacus beads of the plate surface can be taken off arbitrarily to jump to the other surface to carry on addition-subtraction-multiplication-division operations. If Chinese character radicals and frequently used etymons are printed on the two sides of the abacus beads, the Chinese character radicals and frequently used etymons can be mutually combined to spell words and to make sentences. The multifunctional magnetic semicircular numeral (Chinese character) abacus is an ideal teaching aid and toy for the learning of students in class, and for the family training and intelligence developing of preschool children. The multifunctional magnetic semicircular numeral (Chinese character) abacus is also a new style teaching demonstration tool and a convenient carrying ultra-thin abacus.

Description

Multifunctional magnetic semicircular numeral (chinese character) abacus

The utility model relates to a kind of improved abacus.

Existing abacus is made up of framework, crossbeam, bead and shelves.The stagnation resistance that is subjected to because of the bead of string on shelves is too little, runs into to place and touch framework accidentally and jump the pearl displacement easily and cause operation mistake.More or check material object for cumulative data to the scene, hand-heldly tilt and the body-sway motion of moving one's steps will make abacus jump the pearl dislocation to make that all that has been achieved is spoiled, more can not hang abacus up and use.The existing teaching demonstration abacus of hanging computing that can erect can not be used as common abacus again and place desktop and use, and it is hard to pull out pearl, and the bead on every shelves is stressed also inhomogeneous, and resistance hour falls pearl very much easily, especially uses this after a period of time phenomenon can be more serious.Calculate the at first just necessary bead diameter reduction hand-lifting comfort sense that reduces of abacus thickness in order to dwindle.And abacus really uses a part of just stirring bead and the one side of bead, and remaining bead and its another side be free often.

Task of the present utility model is that a kind of improved hand-lifting operational tool will be provided, and it can keep flat desktop easily and use and erect to hang on the wall and also can pull out pearl comfortable feel freely, makes full use of numerous bead simultaneously, increases the functions of use of abacus.

Task of the present utility model is finished as follows: the ferrous metal plate＜6〉of a magnetic conduction of pad under abacus, be adsorbed on the flat contact portion mounting permanent magnet of semicircle bead＜3〉＜5〉on the ferrous metal plate＜6 〉, the shelves＜4〉that pass in the bead semi-circular hole＜9〉are also printed addition subtraction multiplication and division line＜8〉or other symbol figure for semicircle＜11〉ferrous metal plate＜6〉one side, and semicircle bead＜3〉hand-lifting convex surface is printed numeric character.

Or Abacus frame＜1 〉, crossbeam＜2〉and shelves＜4〉form in ferrous metal plate＜6〉the one side printing of a magnetic conduction, be adsorbed on the flat contact portion mounting permanent magnet of semicircle bead＜3〉＜5〉on the ferrous metal plate＜6 〉, ferrous metal plate＜6〉another side is printed addition subtraction multiplication and division line＜8〉or other symbol figure, semicircle bead＜3〉hand is dialled convex surface and is printed numeric character, the both sides semi-circle plane is printed Chinese radical, radical, makes two semicircle beads＜3〉be merged into a circular bead＜10〉and risks new Chinese character.

Below in conjunction with figure explanation the utility model first embodiment.

Fig. 1 is the perpendicular front view of hanging of the utility model.Fig. 3 is that the utility model keeps flat structural drawing.Wherein the framework＜1〉of part, semicircle bead＜3〉and semicircle shelves＜4〉have been done to analyse and observe.Fig. 4 is the perpendicular reverse view of hanging of the utility model.Fig. 6 is the semicircle bead flat assembly drawing of the utility model.With reference to Fig. 1, Fig. 3, Fig. 4 and Fig. 6.With the rectangle ferrous metal plate＜6〉that a thickness is 0.5 millimeter magnetic conduction, surface plating one deck prevents the iron oxidation and has the silvery white metal object of good refract light that one side is carried out to the mirror polishing, another side printing addition subtraction multiplication and division line＜8 〉.The top, angle is gone up aperture＜7〉and is convenient to the perpendicular tether of hanging.Framework＜1 〉, crossbeam＜2 〉, semicircle bead＜3〉and semicircle shelves＜4〉select for use the bamboo and wood materials of non-magnetic conduction or igelite extruding to form.Semicircle bead＜3〉flat contact portion mounting permanent magnets＜5 〉, hand-lifting convex surface department prints numeric character.How much quantity of numeric character looks made bead number what and opinion on the abacus gear, and the bead number is many more, and numeric character is just many more, and the numeric character scope is just wide more.Pass the semicircle shelves＜4〉in bead semi-circular hole＜9〉and the crossbeam＜2 〉, two ends are the top and the bottom of connecting frame＜1〉respectively.

Below in conjunction with figure explanation the utility model second embodiment.

Fig. 1 is the perpendicular front view of hanging of the utility model.Fig. 2 is that the utility model keeps flat structural drawing, wherein a semicircle bead＜3〉has been done to analyse and observe.Fig. 4 is the perpendicular reverse view of hanging of the utility model.Fig. 5 is the semicircle bead flat assembly drawing of the utility model.With reference to Fig. 1, Fig. 2, Fig. 4 and Fig. 5.With the rectangle ferrous metal plate＜6〉that a thickness is 0.5 millimeter magnetic conduction, surface plating one prevents the iron oxidation and has the silvery white metal object of good refract light that one side is carried out to the mirror polishing, another side printing addition subtraction multiplication and division line＜8 〉.Angle top aperture＜7〉is convenient to the perpendicular tether of hanging.Framework＜1 〉, crossbeam＜2〉and shelves＜4〉form at the mirror polished surface printing planimetric map that becomes of ferrous metal plate＜6 〉, the semicircle bead＜3〉that is adsorbed on the ferrous metal plate＜6〉selects for use wood materials or igelite extruding to form, its flat contact portion mounting permanent magnet＜5 〉, the hand-lifting convex portions is printed numeric character, the semicircle face in both sides is printed Chinese radical, radical, makes two semicircle beads＜3〉be merged into a circular bead＜10〉and risks new Chinese character.How many radical index table the insides that Chinese radical, radical can arrive in the Xinhua dictionary (nineteen ninety is reset this) selects the maximum Chinese radical of the most frequently used mosaic, radical according to the bead quantity on the abacus gear.Can also print with reference to the Chinese radical on the building blocks of Chinese character of market sale, radical chronological order, print how much the looking made bead number on the abacus gear and how many faces of printing of Chinese radical, radical quantity and discuss, bead number face many more and that print is many more, the capacity of Chinese radical, radical is just big more, and it is just many more to make up the Chinese character of risking.

Because the silvery white metal reflective thing on the ferrous metal plate＜6〉is in harmony like mirror, make the semicircle bead＜3〉and the semicircle shelves＜4〉that are adsorbed on the minute surface seem it all is circular.

Claims

1, a kind of by framework＜1 〉, crossbeam＜2, bead＜3 and shelves＜4 abacus formed, it is characterized in that filling up ferrous metal plate＜6 under the abacus 〉, be adsorbed on semicircle bead＜3 on the ferrous metal plate〉mounting permanent magnet＜5, pass bead semi-circular hole＜9〉in shelves＜4 also be semicircle＜11.

2, a kind of abacus of forming by framework＜1 〉, crossbeam＜2 〉, bead＜3〉and shelves＜4 〉, it is characterized in that Abacus frame＜1 〉, crossbeam＜2〉and shelves＜4〉form in the printing of a ferrous metal plate＜6〉one side, are adsorbed on semicircle bead＜3〉mounting permanent magnet＜5〉on the ferrous metal plate.

3, abacus according to claim 2 is characterized in that semicircle bead＜3〉both sides semi-circle plane printing Chinese radical, radical, makes two semicircle beads＜3〉be merged into a circular bead＜10〉and risks new Chinese character.

4,, it is characterized in that semicircle bead＜3〉hand-lifting convex portions printing numeric character according to claim 1 and 2 described abacuses.

5,, it is characterized in that the another side of ferrous metal plate＜6〉is printed addition subtraction multiplication and division line＜8〉or other symbol figure according to claim 1 and 2 described abacuses.