CN2616930Y - Nine-bead digital abacus - Google Patents
Nine-bead digital abacus Download PDFInfo
- Publication number
- CN2616930Y CN2616930Y CN 03213281 CN03213281U CN2616930Y CN 2616930 Y CN2616930 Y CN 2616930Y CN 03213281 CN03213281 CN 03213281 CN 03213281 U CN03213281 U CN 03213281U CN 2616930 Y CN2616930 Y CN 2616930Y
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- CN
- China
- Prior art keywords
- abacus
- beads
- bead
- crossbeam
- numerical digit
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a nine beads-typed number abacus, belonging to the technical field of computation, and comprises a plurality of side jambs, a beam, and a plurality of cross pieces with beads, wherein, the beam parallel with a superior side jamb is arranged at the upper part inside the side jambs; a plurality of digital cards which can move left or right are positioned on the beam; the cross pieces are equidistantly arranged at the corresponding inside surface between the beam and an inferior side jamb inside the side jamb; each cross piece is provided with nine abacus beads, wherein, the upper four and the lower four beads have same colors, while the fifth is of different color; ten Arabic numerals from 0 to 9 are printed on the cross pieces; a dovetail groove is arranged outside the superior side jamb of the abacus; attachments printed with digital cards or measure cards of the abacus are inserted in the dovetail groove. The utility model is suitable for teachers and students to use in math class at junior and intermediate level, and also for preschool children to do counting, recognize numbers, and do simple additions and subtraction, as well as for family use.
Description
Technical field
The utility model relates to a kind of abacus, being particularly related to a kind of nine-bead Digital abacus, is to the improvement of existing abacus structure, belongs to the computing technique field, suit in primary school, teachers and students use on the primary grades mathematics class, also suitable preprimary child's number, recognize number, simple plus-minus method and family life and use.
Background technology
At present, five pearls of selling on the market, six pearls, seven rechoning by the abacus dishes all belong to traditional abacus, and it constitutes: a frame is arranged, a crossbeam is arranged in the middle of the frame, be provided with in the frame and going here and there the shelves of bead, the last pearl on the crossbeam ought five with one, and the following pearl under the crossbeam ought one with one.The shortcoming of tradition abacus is that the plus-minus method pithy formula is many, and the multiplication and division method is many, the difficult religion of teacher, and the student finds it difficult to learn, and has only the minority professional to use in the society.And can only calculate, can not show several, can't locate, function singleness is finished difficult using.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, by improvement to traditional abacus structure, provide a kind of nine-bead Digital abacus, multiple functions such as this abacus collection rechoning by the abacus, counter, apparent number, numerical digit table and measurement unit table are one, have the pearl of dialling and see number, pearl is counted combination; With board location, numerical digit combination, hand brain and usefulness, three ways of calculating combination; Rational in infrastructure, a dish multipotency; Do not learn pithy formula, characteristics easy to learn.
The technical scheme that the utility model provides is: this nine-bead Digital abacus includes frame, crossbeam and going here and there bead shelves rod, the top that is characterized in frame inside is provided with a crossbeam parallel with upper side frame, but dispose the numerical digit card of move left and right on the crossbeam, corresponding medial surface is provided with a grade rod equidistantly between the lower frame of crossbeam and frame inside, be installed with nine beads on the every shelves rod, four beads are homochromy up and down, the 5th bead is heterochromatic, so that observe and dial pearl, also be printed on " 0～9 " ten arabic numeral on the shelves rod, full pearl is a neutral gear when falling, on the shelves rod is " 0 ", upwards dials several pearls, just occurs on the shelves rod " several ", promptly number is hidden in the pearl, dials pearl and sees number.
For realizing the purpose of this utility model better, also be provided with dovetail groove in the abacus upper side frame outside, be plugged with the abacus annex in the dovetail groove, this abacus annex is the four sides prism, the band coattail edge, each face is printed on numerical digit board or measurement unit board respectively.Can move left and right, study both had been convenient in turning again use, can increase function again.
Compared with prior art, the beneficial effects of the utility model are:
1. dial that pearl sees number, pearl counts combination
Owing to be printed on " 0～9 " ten arabic numeral on the shelves rod, every grade is again nine pearls, and neutral gear be " 0 ", upwards dials several pearls, just occurs " several " on the shelves rod, promptly dial pearl see count, pearl counts combination.
2. with board location, numerical digit combination
Use for displacement, location owing to be provided with mobile numerical digit card, also have interconvertible mobile numerical digit board, the selective use of measurement unit board, upwards dial pearl, the position is arranged on the pearl, under the pearl number is arranged, be convenient to observe and reading, accomplish pearl, number, the three-in-one body in position, visual in image.
3. hand brain and usefulness, three ways of calculating combination
Because necessary hand, eye, brain are movable simultaneously when calculating, eye will be seen numerical digit clearly, and hand will be dialled pearl and put in place, and numeral is followed the tracks of after calculating, and mistake is in time fed back, and the three ways of calculating is worked in coordination, and promotes human thinking.
4. do not need pithy formula, eager to learn easy-to-use
Because direct dialing plus-minus, and utilize numerical digit card, numerical digit board and measurement unit board, the addition pithy formula of meeting " several go several advance " and " severals' move back one also several " subtraction pithy formula, just can dial pearl and calculate, multiplication is used " merchant's division " with " give up the throne and take advantage of ", division, need not to carry on the back numerous group pearl pithy formulas, needn't singly open abacus, eager to learn easy-to-use, help promoting.
Description of drawings
The structural representation of a kind of embodiment that Fig. 1 provides for the utility model;
Fig. 2 is the structural representation behind this embodiment fit on abacus annex that provides.
Number in the figure is: 1. frame, 2. crossbeam, 3. grade rod, 4. bead, 5. heterochromatic pearl, 6. numerical digit card, 7. abacus annex.
Embodiment
Below in conjunction with accompanying drawing concrete technical scheme of the present utility model is described further:
As shown in Figure 1, the nine-bead Digital abacus includes frame 1, crossbeam 2 and the shelves 3 of wearing bead 4, above frame 1 inside, be provided with a crossbeam parallel 2 with upper side frame, but dispose the numerical digit card 6 of move left and right on the crossbeam 2, corresponding medial surface is provided with grade rod 3 equidistantly between the lower frame of crossbeam 2 and frame 1 inside, be installed with nine beads 4 on the every shelves rod 3, four beads 4 are homochromy up and down, the 5th bead is heterochromatic pearl 5, so that observe and dial pearl, also is printed on " 0～9 " ten arabic numeral on the shelves rod 3, full pearl is a neutral gear when falling, on the shelves rod 3 is " 0 ", upwards dials several pearls, just occurs on the shelves rod 3 " several ".
As shown in Figure 2, also be provided with dovetail groove in the nine-bead Digital abacus upper side frame outside, be plugged with abacus annex 7 in the dovetail groove, this abacus annex 7 is the four sides prism, the band coattail edge, and each face is printed on numerical digit board or various measurement unit board respectively.Can move left and right, turning again use, owing to have numerical digit board and measurement unit board, student needn't carry on the back numerical digit table and various measurement unit table again, thus alleviated student load, strengthened the interest of study abacus, expanded the function of abacus.
In use, earlier with numerical digit card 6 or numerical digit board location.Use numerical digit card 6 location, be placed in the middle of low order end or any two gears, because make radix point usefulness, so can not be pressed on the gear with it.If use numerical digit board (measurement unit board), then must aim at the gear of abacus.When dialling pearl calculating, full pearl falls, and neutral gear is " 0 "; Dialling and go up several pearls, is " several " on the shelves rod.If dial last nine pearls earlier, dial following three pearls from bottom again, surplus six pearls are " 6 " on the shelves rod.But calculate the back and cooperate just accurate reading of top numerical digit board.When multiplication and division calculates, be used with the numerical digit card 6 sum digit boards that move, amass and decide through consultation that the position is all very convenient.
Claims (2)
1. nine-bead Digital abacus, include frame, crossbeam and going here and there bead shelves rod, the top that it is characterized in that frame inside is provided with a crossbeam parallel with upper side frame, but dispose the numerical digit card of move left and right on the crossbeam, corresponding medial surface is provided with a grade rod equidistantly between the lower frame of crossbeam and frame inside, is installed with nine beads on the every shelves rod, and four beads are homochromy up and down, the 5th bead is heterochromatic, also is printed on " 0～9 " ten arabic numeral on the shelves rod.
2. nine-bead Digital abacus according to claim 1, it is characterized in that also being provided with dovetail groove in the abacus upper side frame outside, be plugged with the abacus annex in the dovetail groove, this abacus annex is the four sides prism, the band coattail edge, each face is printed on numerical digit board or measurement unit board respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213281 CN2616930Y (en) | 2003-05-26 | 2003-05-26 | Nine-bead digital abacus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213281 CN2616930Y (en) | 2003-05-26 | 2003-05-26 | Nine-bead digital abacus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616930Y true CN2616930Y (en) | 2004-05-19 |
Family
ID=34242284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213281 Expired - Fee Related CN2616930Y (en) | 2003-05-26 | 2003-05-26 | Nine-bead digital abacus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616930Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369164A (en) * | 2008-09-12 | 2009-02-18 | 王金辉 | Lower nine type direct adding and subtracting abacus |
| CN111045474A (en) * | 2018-10-12 | 2020-04-21 | 张明山 | Enlightening abacus |
-
2003
- 2003-05-26 CN CN 03213281 patent/CN2616930Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101369164A (en) * | 2008-09-12 | 2009-02-18 | 王金辉 | Lower nine type direct adding and subtracting abacus |
| CN111045474A (en) * | 2018-10-12 | 2020-04-21 | 张明山 | Enlightening abacus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |