CN201464953U - Foldable counting frame - Google Patents
Foldable counting frame Download PDFInfo
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- CN201464953U CN201464953U CN2009201032199U CN200920103219U CN201464953U CN 201464953 U CN201464953 U CN 201464953U CN 2009201032199 U CN2009201032199 U CN 2009201032199U CN 200920103219 U CN200920103219 U CN 200920103219U CN 201464953 U CN201464953 U CN 201464953U
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- multiplication
- abacus
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- conversion table
- division conversion
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Abstract
The utility model discloses a foldable counting frame, which comprises a counting frame main body consisting of frames, crosspieces and balls and a multiplication division method conversion table arranged on one side of he counting frame main body, wherein the counting frame main body and the multiplication division method conversion table are arranged on a connecting portion and are connected through a hinge piece in a split way, the position relationship of the counting frame main body and the multiplication division method conversion table are folded or on the same surface, and the purposes of opening the counting frame when in use and folding the counting fame when not in use are achieved, and meanwhile, and the multiplication table does not need memorizing, and multiplication division only needs disposing into relative simple multiplication formula to conduct adding and subtracting calculation. The foldable counting frame can be used to conduct adding, subtracting, multiplication and division calculation, and has simple structure, simple use method, low cost and convenient carrying and folding.
Description
Technical field
The utility model relates to a kind of mathematical computations instrument, refers in particular to a kind of abacus, specifically a kind of collapsible abacus.
Background technology
Abacus is a kind of time-honored traditional calculations instrument in China, and using the record the earliest of abacus in China is 190 years about Christian eras.This traditional abacus belongs to quinary computational tool, not only requires the user to learn multiplication pithy formula by heart in computation process, and it is very familiar also must to dial the pearl rule to the addition of rechoning by the abacus simultaneously, and the user must could skillfully use through the study training.
The applicant's utility model patent " abacus " (patent No. 2004200918941) discloses decimal system abacus, and its design feature is in the equipped multiplication and division conversion table of abacus main body one side.The user needn't carry on the back multiplication pithy formula by force, only need simply add and subtract and can act on.But owing to be furnished with multiplication and division conversion table with the main body one, relatively large thereby it takes up space; This in addition abacus is the decimal system, and the pearl of abacus main body is measured relative quinary and wants many, makes its above-mentioned defective more outstanding, and above reason causes the patented product inconvenience to carry and take in.
The utility model content
The technical problems to be solved in the utility model provides the collapsible abacus that a kind of abacus main body and the split of multiplication and division conversion table are provided with, and the two joint is connected by articulated elements, is easy to carry and takes in.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
A kind of collapsible abacus, comprise abacus main body of forming by frame, shelves, pearl and the multiplication and division conversion table that is provided with in abacus main body one side, abacus main body and the split of multiplication and division conversion table are provided with, the two connects through articulated elements in the joint, and close the position of abacus main body and multiplication and division conversion table is the stacked or coplane of doubling.
Described articulated elements is two folding formula hinges of being located at abacus main body and multiplication and division conversion table joint, and two hinge pages or leaves of hinge are individually fixed on abacus main body and the multiplication and division conversion table; The hinge of hinge is abacus main body and multiplication and division conversion table dorsad.
Described articulated elements is two plates of being located at abacus main body and two ends, multiplication and division conversion table joint, and the two ends of each plate are articulated in respectively on abacus main body and the multiplication and division conversion table.
Described frame is a rectangular box, is fixed with shelves on it between lower transverse frame, on each grade all string 9 beads are arranged, the calculation strain on every grade indicates numeral 1～9 from top to bottom successively.
Described shelves be about the column of fineness unanimity, its radial section be shaped as a kind of in semicircle, rectangle, rhombus, triangle or the ellipse; Bead is provided with the hole of bead of up/down perforation, and the shape in the hole of bead, size and shelves are suitable; Bead and shelves between for being slidingly matched.
The described multiplication and division conversion table cut-off rule of serving as reasons in length and breadth intersects formed 9 * 9 rectangular tableau formats, indicates numeral 1～9 in each lattice of form first trip from left to right successively; Indicate numeral 1～9 in first each lattice of form from top to bottom successively; Indicate one long-pending or the double figures of expression m * n in the capable lattice with place, n row point of crossing of the m of form, wherein m, n are arbitrary integer in 1～9.
The utility model open promptly can be used for calculating, take in when carrying folding.Its computing method are as follows:
A. multiplication: multiplier is decomposed, be split as corresponding a few number multiply each other the back long-pending and form.
As calculate 123 * 456, and it can be decomposed into 123 * 400+123 * 50+123 * 6, carry out according to following steps:
1. 123 * 400: pairing several 4,8,12 by the 1st, 2,3 row of finding out the 4th row in the conversion table respectively (or the 1st, 2,3 row of the 4th row), 400+80+12 is carried out simple mental arithmetic get 492; Several the 5th grade of promptly right five grades of beginnings of right-to-left, each grade upwards set the watch successively and shown 4,9,2,0,0 bead (represent do not dial any bead) at 0 o'clock to the right;
2. 123 * 50: pairing several 5,10,15 by finding out the 5th row the 1st, 2,3 row (or the 5th be listed as the 1st, 2,3 row) in the conversion table respectively, 500+100+15 is carried out simple mental arithmetic get 615; It is that right fourth gear begins that right-to-left is counted fourth speed, to the right each grade successively with 6,1,5,0 and shelves go up original several additions, dial and go up corresponding and number, have the original several additions with on the shelves of a corresponding left side of carry to transfer to corresponding pearl; Now from right five grades of beginnings to the right the numeral of each grade be 55350;
3. pairing several 6,12,18 by finding out the 6th row the 1st, 2,3 row (or the 6th be listed as the 1st, 2,3 row) in the multiplication and division conversion table respectively, 600+120+18 is carried out simple mental arithmetic get 738; From right third gear to the right each grade successively with 7,3,8 and shelves go up original several additions, dial and go up corresponding and number, have the original several additions with on the shelves of a corresponding left side of carry to transfer to corresponding pearl; Now from right five grades of beginnings to the right the numeral of each grade be 56088.
So far, calculate and finish, result of calculation is " 56,088 ", i.e. 123 * 456=56088.
B. division: estimation merchant's integer-bit has several earlier, begins the examination merchant by merchant's most significant digit, the product addition after each decomposes when calculating with multiplication among a regular opposite, to from dividend, deduct when making division calculation the amassing of the quotient of trying and divisor.
Therefore the obtained technical progress of the utility model is: abacus main body and multiplication and division conversion table are split type for what connects through articulated elements, and therefore stacked the or coplane of the two doubling can realize that abacus opens, takes in the purpose that folds when carrying in use.When abacus main body of the present utility model is made the decimal system, do not need the ripe back of the body multiplication pithy formula of user, only need multiplier that will be relevant or after the formula of removing resolves into corresponding simple multiplier, from conversion table, check in corresponding add deduct to calculate after long-pending get final product.For the multiplication and division beginner, can with formula one letter of multiplication and division on earth----be that abbreviation is the minimum form that one digit number multiply by one digit number, just can calculate.Collapsible abacus provided by the utility model can carry out the calculating of addition subtraction multiplication and division, and it is simple in structure, and using method is simple, and is with low cost, carries and takes in conveniently.
The utility model is described in further detail below in conjunction with Figure of description and specific embodiment.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the user mode of the utility model embodiment 1;
Fig. 2 is the partial enlarged drawing of the rear view of Fig. 1;
Fig. 3 is the radial section figure of embodiment illustrated in fig. 11 middle-grade and bead matching relationship;
Fig. 4 be plate among the embodiment 2 structure and and abacus main body, multiplication and division conversion table between the connecting relation synoptic diagram.
Wherein: 1--abacus main body, 2--multiplication and division conversion table, 11--frame, 12--shelves, 13--pearl, 31--hinge, 32--plate.
Embodiment
Figure 1 shows that a kind of collapsible abacus, comprise abacus main body 1 and multiplication and division conversion table 2.
Abacus main body 1 is made up of frame 11, shelves 12, pearl 13; Multiplication and division conversion table 2 is located on the left of the abacus main body, and the two is split type, and their joint two folding formula hinges 31 connect. and as shown in Figure 2, two hinge pages or leaves of hinge 31 are individually fixed in the back side of abacus main body 1 and multiplication and division conversion table 2; The hinge of hinge 31 abacus main body 1 and multiplication and division conversion table 2. such hinges 31 dorsad has a pair of every what be provided with between the upper and lower.
Abacus main body 1 is opened as the coplane state with multiplication and division conversion table 2 or doubling is folded state.
Shelves 12 be about the column of fineness unanimity, its radial section be shaped as semicircle; Bead 13 is provided with along the hole of bead of the bearing of trend up/down perforation of shelves 12 for certain thickness ellipse is arranged, and the shape in the hole of bead, size and shelves 12 are suitable; Bead 13 and shelves 12 for being slidingly matched.Shelves and this matching relationship of pearl can prevent that pearl from rotating on shelves, guarantee reading quickly and accurately.
Multiplication and division conversion table 2 cut-off rule of serving as reasons in length and breadth intersects formed 9 * 9 rectangular tableau formats, indicates numeral 1～9 in each lattice of form first trip from left to right successively; Indicate numeral 1～9 in first each lattice of form from top to bottom successively; Indicate one long-pending or the double figures of expression m * n (m, n are arbitrary integer in 1～9) in the capable lattice with place, n row point of crossing of the m of form, the numeral of the units in these one digit numbers and two sensitivities be a green; Tens peace in the double figures is a purple as carry digit.
The difference of present embodiment and embodiment 1 only is that the connector of 2 of abacus main body 1 and multiplication and division conversion tables is different.
Described connector as shown in Figure 4, for being located at two plates at abacus main body 1 and two ends, multiplication and division conversion table 2 joint, the two ends of each plate 32 are articulated in respectively on abacus main body 1 and the multiplication and division conversion table 2.
Certainly, embodiment of the present utility model is not limited to above specific embodiment, and its all feature all can have the equivalent transformation of various ways, can be the articulated elements of other form as the connection between two parts; The position of conversion table and main body relation can be a right left side, about, up and down, down on; The numeral of different meanings can be distinguished on characteristics such as color, font, size; The radial section shape of shelves can be that other is non-circular; The quantity of shelves can increase and can subtract.But no matter how its concrete mode to change, so long as main body and conversion table split are established and, all think to fall within the protection domain of the present utility model through the collapsible abacus that articulated elements is connected into.
Claims (6)
1. collapsible abacus, comprise abacus main body of forming by frame, shelves, pearl and the multiplication and division conversion table that is provided with in abacus main body one side, it is characterized in that: described abacus main body and the split of multiplication and division conversion table are provided with, the two connects through articulated elements in the joint, and close the position of abacus main body and multiplication and division conversion table is the stacked or coplane of doubling.
2. collapsible abacus according to claim 1 is characterized in that: described articulated elements is two folding formula hinges of being located at abacus main body and multiplication and division conversion table joint, and two hinge pages or leaves of hinge are individually fixed on abacus main body and the multiplication and division conversion table; The hinge of hinge is abacus main body and multiplication and division conversion table dorsad.
3. collapsible abacus according to claim 1 is characterized in that: described articulated elements is two plates of being located at abacus main body and two ends, multiplication and division conversion table joint, and the two ends of each plate are articulated in respectively on abacus main body and the multiplication and division conversion table.
4. according to each described collapsible abacus among the claim 1-3, it is characterized in that: described frame is a rectangular box, is fixed with shelves on it between lower transverse frame, on each grade all string 9 beads are arranged, the calculation strain on every grade indicates numeral 1～9 from top to bottom successively.
5. collapsible abacus according to claim 4 is characterized in that: described shelves are the column of fineness unanimity up and down, its radial section be shaped as a kind of in semicircle, rectangle, rhombus, triangle or the ellipse; Bead is provided with the hole of bead of up/down perforation, and the shape in the hole of bead, size and shelves are suitable; Bead and shelves between for being slidingly matched.
6. according to each described collapsible abacus among the claim 1-3, it is characterized in that: the described multiplication and division conversion table cut-off rule of serving as reasons in length and breadth intersects formed 9 * 9 rectangular tableau formats, indicates numeral 1～9 in each lattice of form first trip from left to right successively; Indicate numeral 1～9 in first each lattice of form from top to bottom successively; Indicate one long-pending or the double figures of expression m * n in the capable lattice with place, n row point of crossing of the m of form, wherein m, n are arbitrary integer in 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201032199U CN201464953U (en) | 2009-06-10 | 2009-06-10 | Foldable counting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201032199U CN201464953U (en) | 2009-06-10 | 2009-06-10 | Foldable counting frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464953U true CN201464953U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201032199U Expired - Fee Related CN201464953U (en) | 2009-06-10 | 2009-06-10 | Foldable counting frame |
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|---|---|
| CN (1) | CN201464953U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594932A (en) * | 2018-06-06 | 2018-09-28 | 张富平 | A kind of multi-system mathematics calculation plate |
-
2009
- 2009-06-10 CN CN2009201032199U patent/CN201464953U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594932A (en) * | 2018-06-06 | 2018-09-28 | 张富平 | A kind of multi-system mathematics calculation plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120610 |