CN2433685Y

CN2433685Y - Movable counting board

Info

Publication number: CN2433685Y
Application number: CN 00224984
Authority: CN
Inventors: 文其林
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-09
Filing date: 2000-06-09
Publication date: 2001-06-06
Anticipated expiration: 2010-06-09

Abstract

The utility model relates to a movable counting board. Fixed panels are provided with a stripe-shaped window; the space between a box body and the fixed panels is provided with a clamping groove in which moving inserting plates can be moved; the upper part of front addition plates on the moving inserting plates is provided with number areas from 0 to 10; subtraction plates on back surfaces of the moving inserting plates are provided with number areas from 10 to 0; the positions on the fixed panels, which are corresponding to the positions of the stripe-shaped window, are provided with fixed number areas from 10 to 1; the space between the stripe-shaped window and the fixed number areas, which is corresponding to fixed numbers, is provided with installing holes of operating signs, the inner part of which is provided with two electric conduction contacts; operating sign plates are provided with magnetic conductors the magnetic conductors are corresponding to the installing holes of operating signs. The utility model has the advantages that the window can display answers, sound and sight is combined, and teaching can be taken in a happy condition. The utility model is suitable for being used as an appliance both in family teaching and classroom teaching.

Description

The movable plate that calculates

The utility model relates to a kind of teaching aid that is used for mathematical education, particularly a kind of movable plate that calculates.

For first grade of primary school or infancy child, the plus and minus calculation of numeral is a more abstract problem, how to utilize the child at a kind of object visual guiding child's age comparatively directly perceived, simple to find operation law, more stiff methods such as alternative existing abacus have caused people's common concern.

The purpose of this utility model be to provide a kind of simple in structure, can carry out " 10 " intuitively and calculate plate with the activity of interior plus-minus method.

For reaching above purpose, the technical scheme of taking is as follows:

Comprise that casing 1, fixed panel 2, active plugboard 3, sign of operation plate 9 and active window insert cover plate 10, wherein:

Have a marking shape window 4 on the described fixed panel 2, on described casing 1, one draw-in groove that can hold active plugboard 3 is arranged with these marking shape window 4 correspondence positions, establish from 0 to 10 numeral on the described active plugboard 3 on the partitioned adder of front, then be provided with from 10 to 0 numeral on the reverse side subtraction plate; One side of described marking shape window 4 is provided with and can inserts the display window as a result 5 that cover plate 10 hides by active window, is provided with a normally closed switch 6 above the display window 5 as a result at this; On fixed panel 2, be provided with fixed number block 7 from 10-1 with marking shape window 4 correspondence positions; The corresponding sign of operation putting hole 8 of establishing two conductive contacts in one that is equipped with each stationary digital between described marking shape window 4 and the fixed number block 7; Described sign of operation plate 9 is provided with the magnetic conductive body, AND operator putting hole 8 correspondences; Also be provided with luminous arrow 12 and luminous equal sign 11 with display window 5 correspondence positions as a result, described luminous arrow 12 and luminous equal sign 11 are that electroluminescent diode constitutes.

The utility model not only can do " 10 " with interiorly add, subtraction, not only window shows answer.And acousto-optic combination, teach through lively activities, full of interest, simultaneously can also guide child to find operation law, draw inferences about other cases from one instance, help developing preschool children ' observation ability and thinking ability, tap intellectual resources, be particularly suitable for the child of kindergarten, the little classmate of preschool class and first grade of primary school makes family and classroom instruction apparatus.

Below by drawings and Examples the utility model is further described:

Fig. 1 is the utility model structural representation;

Fig. 2 is circuit theory diagrams.

As shown in Figure 1, comprise that casing 1, fixed panel 2, active plugboard 3, sign of operation plate 9 and active window insert cover plate 10, wherein:

Numeral 10 to 1 is by arranging from left to right on the fixed number block of present embodiment, and numeral is 0 to 10 from left to right on the partitioned adder, is 10 to 0 on the subtraction plate; Another situation is the fixed number block, add, numeral is all arranged conversely on the subtraction plate, and display window then correspondingly is adjusted to the casing left side as a result, and active plugboard also changes into from the left side and inserting, and its effect is the same.

If need carry out " 20 " with interior signed magnitude arithmetic(al), then only need active plugboard digital extended to 20, other is adjusted accordingly and gets final product.As need wide region more, method is identical.

Fig. 2 is circuit theory diagrams, and its printed circuit board is fixed in casing 1 inside.

1, before the computing, from the accessory bag, get earlier with have "? " the cover plate of display window as a result, "? " face up, insert display window as a result from top to down, make normally closed switch be in "off" state.Circuit general switch with the casing right side places " opening " again, and at this moment green power light can be bright.

2, do additive operation.If when need calculating " 4+3 ", "+" that make portable plate earlier forward-facing, in the insertion groove.Then on portable plate, find " 4 ", slip portable plate to make it to align with " 3 " on its below fixed head.Take out a magnetic "+" number sign of operation plate then and be placed in the circle between " 4 " and " 3 " from the accessory bag, when this sign of operation plate was adsorbed in the sign of operation putting hole, two conductive contacts were switched in the hole.At this moment the arrow of five green luminotron compositions is bright, shows that the result is just in the display window as a result of arrow indication.Does what the bootable child of teacher's this moment calculate " 4+3 " and equals? for a moment, after child thinks deeply answer, extract display window cover plate as a result out, this moment the normally closed switch red luminotron equal sign of the automatic processing circuit intense flash buzzer call of upspringing, the flash of light small electric bulb flashes, and result " 7 " shows at window.Last teacher guides child to observe thinking to also have which group number to add up also to equal " 7 ", and takes out some magnetic "+" number sign of operation plate be placed in the corresponding sign of operation putting hole from the accessory bag, thereby finds its rule.

3, do subtraction."-" that make portable plate forward-facing uses magnetic "-" number instead simultaneously, and it manipulates identical with the additive operation method.

4,, when flash of light small electric bulb 13 is bright inadequately, then show electric weight deficiency in the little accumulator of 6V if buzzer call weakens.Please casing right side master switch is put " pass ", take out power lead and connect calculating plate left side socket earlier, insert in the supply socket of 220V home lighting again, if circuit is connected, the little red led that calculates lower left, plate front this moment is bright, switches on like this 7-8 hour.

Claims

1, a kind of movable plate that calculates comprises that casing (1), fixed panel (2), active plugboard (3), sign of operation plate (9) and active window insert cover plate (10), it is characterized in that:

Have a marking shape window (4) on the described fixed panel (2), go up and this marking shape window (4) correspondence position has one can hold the draw-in groove of active plugboard (3) at described casing (1), described active plugboard (3) is gone up and to be established from 0 to 10 numeral on the partitioned adder of front, then is provided with from 10 to 0 numeral on the reverse side subtraction plate; One side of described marking shape window (4) is provided with and can inserts the display window as a result (5) that cover plate (10) hides by active window, and at this display window as a result, (5) top is provided with a normally closed switch (6); Go up and marking shape window (4) correspondence position is provided with fixed number block (7) from 10-1 at fixed panel (2); The corresponding sign of operation putting hole (8) of establishing two conductive contacts in one that is equipped with each stationary digital between described marking shape window (4) and fixed number block (7); Described sign of operation plate (9) is provided with the magnetic conductive body, AND operator putting hole (8) correspondence.

2, the movable plate that calculates as claimed in claim 1 is characterized in that described display window as a result (5) correspondence position also is provided with luminous arrow (12) and luminous equal sign (11), and described luminous arrow (12) and luminous equal sign (11) are that electroluminescent diode constitutes.