CN2798159Y - Abacus for bead mental arithmetic - Google Patents
Abacus for bead mental arithmetic Download PDFInfo
- Publication number
- CN2798159Y CN2798159Y CN 200520030988 CN200520030988U CN2798159Y CN 2798159 Y CN2798159 Y CN 2798159Y CN 200520030988 CN200520030988 CN 200520030988 CN 200520030988 U CN200520030988 U CN 200520030988U CN 2798159 Y CN2798159 Y CN 2798159Y
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- CN
- China
- Prior art keywords
- abacus
- mental arithmetic
- plate
- frame
- mental
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The utility model relates to an abacus which is composed of a frame, a beam, gears and abacus beads strung on the gears, wherein the back surface of the abacus is provided with an abacus plate which is fixedly connected with the frame of the abacus; the frame and the beam are arranged on the abacus plate; a plurality of positioning points are arranged on one end of the beam; the middle part and the other end of the abacus plate are provided with a plurality of gears; copying abacus beads are arranged on a plurality of gears of the other end of the abacus plate. The abacus can carry out real dialing calculation and empty dialing mental arithmetic and is suitable for abacus mental arithmetic people of primary, medium and advanced levels. The utility model makes abacus mental arithmetic training changed gradually from easy to difficult, accelerates practice speed of abacus mental arithmetic and enables a lot of youth and children to carry out abacus mental arithmetic training.
Description
Technical field:
The utility model relates to a kind of abacus, relates in particular to the special-purpose abacus of a kind of dual-purpose abacus mental calculation.
Background technology:
Abacus is the ancient and traditional computational tool of China, uses till today always, and its structure does not have bigger variation all the time, it by around frame, middle beam, pass shelves and the bead of string on shelves that the beam two ends are fixed on the frame and form.Traditional computing method are the rules according to rechoning by the abacus, calculate by the real abacus bead of dialling.The existing imitative abacus of dialling is the special-purpose abacus of mental arithmetic that has only frame, beam, shelves, the special-purpose abacus of this mental arithmetic, the mental arithmetic person who only is fit to have intermediate level practises using, along with popularizing of abacus mental calculation, exercise use and higher mental arithmetic practitioner that this abacus can not satisfy the horizontal person of how elementary mental arithmetic improve use.
The utility model content:
The purpose of this utility model is to provide a kind of carries out that reality dial to be calculated and imitatively dials mental arithmetic, and is fit to have the special-purpose abacus of dual-purpose novel abacus mental calculation that the horizontal person of elementary mental arithmetic and higher mental arithmetic person practise using.
Adopt following technical scheme for addressing the above problem the utility model: a kind of abacus, to form by frame, beam, shelves and string bead on shelves, the back side of this abacus is provided with an abacus plate, and fixedlys connected with the frame of abacus.
Abacus plate 3 is provided with frame 5 and beam 6, is provided with a plurality of anchor points 4 on an end of beam 6, is provided with a plurality of shelves 7 at the middle part of abacus plate 3 and the other end, is provided with profiling bead 8 on a plurality of shelves 7 of the other end of abacus plate 3.
The beneficial effects of the utility model are: abacus mental calculation plate 3 is fixedlyed connected with the frame 1 of traditional abacus, and two kinds of abacuses are combined, and has solved the problem that needs two cover instruments when rechoning by the abacus and mental arithmetic, has brought convenience to the user.Secondly, an end of abacus plate 3 has frame 5, beam 6, shelves 7 and profiling bead 8, forms the mental arithmetic district with the horizontal person's exercise of elementary mental arithmetic; The middle part of abacus plate 3 has beam 6 and shelves 7, forms the mental arithmetic district with the horizontal person's exercise of intermediate mental arithmetic; The other end at abacus plate 3 only has beam 6 and a plurality of anchor points 4 that are positioned on the beam 6, forms the mental arithmetic district with the horizontal person's exercise of senior mental arithmetic.Can make abacus mental calculation training from easy to difficult, accelerate the practice speed of abacus mental calculation by elementary progressively excessively to senior, allowing more, what year children carry out abacus mental calculation training.
Description of drawings:
Fig. 1 is the front view of this abacus;
Fig. 2 is the upward view of this abacus;
Embodiment:
Below in conjunction with accompanying drawing specific embodiment of the utility model is done progressive explanation.As Fig. 1,2,3 described abacuses, comprise frame 1, pearl 2, plate 3 has been formed the abacus of novel abacus mental calculation.In the bottom of this kind abacus, an abacus plate 3 is arranged, its size is big or small consistent with abacus frame 1, and is fixed on the abacus frame 1.Abacus plate 3 is provided with frame 5 and beam 6, is provided with a plurality of anchor points 4 on an end of beam 6, and this district is the senior district of abacus mental calculation, has only the anchor point 4 on frame 5 and beam 6 and the beam 6, dials pearl with thinking and carries out abacus mental calculation.Be provided with a plurality of shelves 7 at the middle part of abacus plate 3, the middle rank district with frame 5 and beam 6 formation abacus mental calculation has the horizontal person of intermediate abacus mental calculation and can utilize this district to feel to imitate group pearl.Be provided with a plurality of shelves 7 at the other end of abacus plate 3, on shelves 7, be provided with the profiling bead, form the preliminary area of abacus mental calculation, be suitable for the beginner and carry out the pictograph pattern and imitate and dial pearl with frame 5 and beam 6.
Claims (2)
1, a kind of abacus is made up of frame, beam, shelves and string bead on shelves, and it is characterized in that: the back side of this abacus is provided with an abacus plate [3], and fixedlys connected with the frame [1] of abacus.
2, abacus as claimed in claim 1, it is characterized in that: abacus plate [3] is provided with frame [5] and beam [6], on an end of beam [6], be provided with a plurality of anchor points [4], be provided with a plurality of shelves [7], on a plurality of shelves [7] of the other end of abacus plate, be provided with the profiling bead at the middle part of abacus plate and the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030988 CN2798159Y (en) | 2005-06-09 | 2005-06-09 | Abacus for bead mental arithmetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520030988 CN2798159Y (en) | 2005-06-09 | 2005-06-09 | Abacus for bead mental arithmetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2798159Y true CN2798159Y (en) | 2006-07-19 |
Family
ID=36869407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520030988 Expired - Fee Related CN2798159Y (en) | 2005-06-09 | 2005-06-09 | Abacus for bead mental arithmetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2798159Y (en) |
-
2005
- 2005-06-09 CN CN 200520030988 patent/CN2798159Y/en not_active Expired - Fee Related
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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 |