CN2034722U

CN2034722U - Electric arithmetic toy for children

Info

Publication number: CN2034722U
Application number: CN 88200486
Authority: CN
Inventors: 徐远明
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-01-13
Filing date: 1988-01-13
Publication date: 1989-03-22

Abstract

The utility model discloses an electric arithmetic toy for children. The difference between the utility model and the common electronic arithmetic toy is that the decimal digit is compiled to binary digit and input into the arithmetic circuit. The arithmetic circuit uses a digital inserting block insert socket to connect the circuit; the four binary encodings corresponding to the decimal digit are arranged under the digital inserting block; the position of the four binary encodings foot inserting and interval is correspondingly consistent with the position of the fixed reed and the movable reed. The utility model can be conveniently and flexibly used, can make a plurality of different formulas, operate accurately, visualize the education, combine the counting, learning numbers, and the plus-minus operation together, and carry out the systematical enlightenment education.

Description

Electric arithmetic toy for children

The utility model is a kind of child's electronics arithmetic toy.

Existing child's electronics arithmetic toy, to child's intelligence development, the notion that strengthens number has certain effect.All combine but that these toys can not make is several, know number to plus and minus calculation, carry out the formative education of system simultaneously.

The purpose of this utility model is, propose a kind of make several, know number to plus and minus calculation and all combine, carry out child's electronics arithmetic toy of system's formative education simultaneously, the complete simulation of this toy regular child's arithmetic teaching method.

Task of the present utility model is achieved through the following technical solutions.

Basic structure pattern of the present utility model is made up of shell, bead, pearl axle, functional switch, reset switch, sounder and computing circuit, and this computing circuit has adopted digital inserted block to insert socket and connected circuit; Adopted switch (K ₃), (K ₄), (K ₅), resistance (R ₁), (R ₂), (R ₃), the rechoning by the abacus formula count pulse generator that capacitor C is formed has adopted integrated package tetrad counter CC ₁, adopted four full adder CC of integrated package ₂Four biconditional gate CC have been adopted ₃, AND circuit CC ₄, socket (6-K ₈) form declare the topic circuit.

Socket in the utility model is made up of four clip D, C, B, A and four movable reed H, G, F, E respectively.

Digital inserted block below in the utility model is provided with the tetrad coding corresponding with decimal number and participates and empty crotch.

Participating of digital inserted block in the utility model is all corresponding consistent with the position of clip and movable reed with empty crotch position.

The utility model has the digital inserted block more than three to constitute the arithmetic formula.

Inventive principle of the present utility model is as follows:

The counter, the full adder that use of this toy, to declare the topic circuit all be to carry out work with the form of binary number, so when digital inserted block is given the computing circuit supplied with digital signal, decimal number must be compiled as binary number.

2. the decimal number on the digital inserted block, should determine participating and empty crotch of digital inserted block according to corresponding binary number, be " 1 " if participate, empty crotch is " 0 ", utilize the mutual change with empty crotch position of participating of digital inserted block, decimal number can be compiled as binary number, be translated into tetrad " 1101 " as decimal number " 13 ".

3. consistent with clip and movable reed owing to participating with the position of empty crotch, digital inserted block just can make movable reed contact with clip after inserting socket, and circuit is connected number, number number, the plus and minus calculation work known.

Further describe principle of work of the present utility model below in conjunction with embodiment.

Fig. 1, external form figure of the present utility model.

Fig. 2, complete machine principle of work block diagram of the present utility model.

Fig. 3, a kind of concrete digital inserted block that the utility model proposes participate type shape figure with empty crotch.

Fig. 4 participates and empty crotch and the corresponding figure in reed position.

Fig. 5, specific works line map of the present utility model.

With reference to Fig. 5 and Fig. 1,1. bead is all focused on pushbutton switch (K ₄) and (K ₅) a side, functional switch (K ₁-K ₂) shift onto Place, i.e. switch (K among Fig. 5 ₁) closed energized, (K ₂) beat to the I point, press reset switch (K again ₃), tetrad full adder CC ₂Be cut off power supply, be in resting state, can number and the exercise of knowledge number.

Switch (K among Fig. 5 ₁) after the closure, power supply is through resistance R ₁To the capacitor C charging, its anodal charging voltage is pressed index and is risen, when the charging interval is t=3RC, and charging voltage Vc=3V, bead is by press button (K ₄) or (K ₅), make (K ₄) or (K ₅) closure, capacitor C two terminal shortcircuits, capacitor C is directly to the power supply discharge, and charging voltage Vc reduces to the O volt at once, forms a steep pulse trailing edge, and this pulse trailing edge triggers tetrad counter CC ₁, this counter CC ₁Accumulated counts once, bead leaves press button (K ₄) or (K ₅) after, its (K ₄) or (K ₅) disconnect again, power supply repeats through resistance R ₁To the capacitor C charging, prepare for count next time.

Press reset button (K ₃), make tetrad counter CC ₁Computing mode be " 0000 ", press button (K ₄) or (K ₅) through a bead, counter CC ₁Count status be " 0001 ", until 15 beads all push through press button (K one by one ₄) and (K ₅), counter CC ₁Count status " 1111 ", the digital inserted block that will be shaped with " 15 " inserts socket (6-K ₈) in, declare four biconditional gate CC in the topic circuit ₃Two groups of input numbers equate i.e. D ₃C ₃B ₃A ₃=D ₄C ₄B ₄A ₄, its output J, K, L, M export high level, have determined and door CC ₄Output K ₀Be high level, at this moment, press button (K ₉), sounder sends musical sound, illustrates that number number and knowledge number are correct, if the bead number of number and insertion socket (6-K ₈) digital inserted block on the decimal number that represents when not conforming to, declare four biconditional gate CC in the topic circuit ₃Two groups of input numbers unequal, i.e. D ₃C ₃B ₃A ₃≠ D ₄C ₄B ₄A ₄, its output J, K, L, M can not all export high level, have determined and door CC ₄Output K ₀Be low level, at this moment press button (K ₉), sounder can sounding, the number number is described and knows number incorrect.

Also digital inserted block can be inserted earlier socket (6-K ₈) in, carry out again the bead counting.

With reference to Fig. 1 and Fig. 5, with functional switch (K ₁-K ₂) be pushed into ± locate i.e. switch (K among Fig. 5 ₁) closure, switch (K ₂) beat to the II point, again two digital blocks are inserted socket (3-K respectively ₇), (8-K ₆) energized, and rechoning by the abacus formula count pulse generator sum counter CC ₁Be cut off power supply, just can carry out plus and minus calculation.

Tetrad full adder CC ₂With two digital inserted blocks and several, from its output S ₄S ₃S ₂S ₁Be transferred to the four biconditional gate CC that declare in the topic circuit ₃Input D ₃C ₃B ₃A ₃, the socket (6-K in declaring the topic circuit ₈) locate, inserting a digital inserted block, the number that represents on this numeral inserted block equals and when counting.Be D ₄C ₄B ₄A ₄=D ₃C ₃B ₃A ₃=S ₄S ₃S ₂S ₁Four biconditional gate CC ₃Output terminal J, K, L, M all be high level, with door CC ₄Output terminal K ₀Be high level also, press pushbutton switch (K ₉), sounder sends musical sound, illustrates that formula is correct.Otherwise, if insert socket (6-K ₈) digital inserted block on the number that represents with and number when unequal, i.e. D ₄C ₄B ₄A ₄≠ D ₃C ₃B ₃A ₃, four biconditional gate CC ₃Output J, K, L, M can not all export high level, determined and door CC ₄Output K ₀At this moment inevitable output low level presses press button (K ₉), sounder can sounding.The mistake of solving a problem is described.

During subtraction, be the inverse operation principle of addition according to subtraction, again because tens digit inserted block of the present utility model can be translated into binary number, as the input signal of computing circuit, therefore, and when carrying out the subtraction recreation, will functional switch (K ₁-K ₂) being pushed into " ± " position, 2. arithmetic toy Rotate 180 ° inserts socket with "=" symbol inserted block, and "-" symbol inserted block inserts socket (11), and minuend numeral inserted block inserts socket (6-K ₈), subtrahend numeral inserted block inserts socket (3-K ₇), remainder numeral inserted block inserts socket (8-K ₆), make the toy surface put the subtraction formula, its computing circuit is actual to carry out additive operation.

Symbol inserted block "+", "-", "=" also are movable inserted block.

Sounder is by music integrated circuit CW, oscillation resistance R ₁₆, power discharging transistor T.Loudspeaker form, as long as plugged, to CW circuit " 2 " input one high level, sounder namely can be sung the melody that is stored in advance in the CW circuit simultaneously.

The utility model easy to use and flexible can be listed all kinds of different formula, and computing is accurate, educating image, can make several, know number to plus and minus calculation and all combine, carry out simultaneously the formative education of system.

Claims

1, a kind of child's electronics arithmetic toy, by shell (13), bead 1., the pearl axle 7., functional switch (K ₁-K ₂), reset switch (K ₃), sounder and computing circuit form, it is characterized in that:

A. described computing circuit has adopted digital inserted block (14) to insert socket (8-K ₆), (3-K ₇), (6-K ₈) connect circuit,

B. described computing circuit has adopted switch (K ₃), (K ₄), (K ₅), resistance (R ₁), (R ₂), (R ₃), the rechoning by the abacus formula count pulse generator that capacitor C is formed,

C. described computing circuit has adopted integrated package tetrad counter CC ₁,

Q. described computing circuit has adopted four full adder CC of integrated package ₂,

E. described computing circuit has adopted four biconditional gate CC ₃, AND circuit CC ₄, socket (6-K ₈) form declare the topic circuit.

2, child's electronics arithmetic toy according to claim 1 is characterized in that socket (8-K ₆), (3-K ₇), (6-K ₈) form by four clip D, C, B, A and four movable reed H, G, F, E respectively.

3, child's electronics arithmetic toy according to claim 1 is characterized in that, described digital inserted block (14) below is provided with the corresponding tetrad coding of decimal number and participates (15) and empty crotch (16).

According to claim 1 or 2 or 3 described child's electronics arithmetic toys, it is characterized in that 4, the position of participating (15) and empty crotch (16) of digital inserted block (14) is all corresponding consistent with the position of clip D, C, B, A and movable reed H, G, F, E.

5, child's electronics arithmetic toy according to claim 4 is characterized in that, has the digital inserted block more than three to constitute the arithmetic formula.