CN2190317Y

CN2190317Y - Checking instrument for children's arithmetic works

Info

Publication number: CN2190317Y
Application number: CN 94227043
Authority: CN
Inventors: 刘伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-15
Filing date: 1994-01-15
Publication date: 1995-02-22
Anticipated expiration: 2004-01-15

Abstract

The utility model discloses a checking instrument for children's arithmetic operation. The utility model is characterized in that the checking instrument is formed by that a question groove is arranged on a checking box; question blocks with different arithmetic expressions are arranged in the question groove in turns; one end of the checking box is connected with a trigger switch as a whole through a spring; the trigger switch is arranged in an acoustooptic electric appliance box in which an acoustooptic electronic circuit is arranged. Through the utility model, children can independently carry out calculation and checking to determine the correctness and the wrongness of results, children's learning interest is inspired, and the children master required knowledge in a conscious or unconscious manner.

Description

Checking instrument for children's arithmetic works

The utility model belongs to the children intelligent toy field.

Toy for children is of a great variety, can have arithmetic building blocks for the object for appreciation of children mathmatics intellectual development aspect, Arithmetic board game, and arithmetical operation cards etc. are as simple addition subtraction multiplication and division computing.Chinese patent CN 86200065U is entitled as " Simple Calculation device " and Chinese patent 85200915 is entitled as " multifunctional children arithmetic toy " etc. and all can carries out primary school's arithmetic, but can not allow children oneself judge whether the result who calculates is correct, and limitation is very big.

The purpose of this utility model is to provide a kind of children arithmetic computing detecting device at the deficiencies in the prior art, it can calculate the sum of addition subtraction multiplication and division, can own computing detect judgement operation result right and wrong, can edify children's learning interest, cultivate the plus-minus that children distinguish the numbers of the same name, the thinking ability that compares and imagine, conscious or grasp needed knowledge unconsciously, is one in study with amusement, promote intellectual development, also can be used as the assistant teaching aid of the head of a family and infant teacher manoeuvre on the classroom.

The children arithmetic computing detecting device that the utility model provides such as Fig. 1, Fig. 2, shown in Figure 3.

Fig. 1 is the structural representation of children arithmetic computing detecting device

(1) detects box, (2) topic groove, (3) topic piece, (4) acousto-optic electrical equipment box, (5) spring.

Fig. 2 is the topic piece synoptic diagram of children arithmetic computing detecting device

Fig. 3 is the acousto-optic electronic circuitry

Children arithmetic computing detector is provided with topic groove (2) by detecting box (1), places in turn different arithmetical operation topic pieces (3) in the topic groove (2), and the height of topic groove (2) is no more than 40% of topic piece (3), so that the topic piece is arbitrarily put into and taken out. The trigger switch of an end in spring (5) and acousto-optic electrical appliance kit (4) that detects box (1) connects into integral body, is provided with acoustic luminous electronic circuit in the acousto-optic electrical appliance kit.

Topic piece (5) should make with to inscribe groove cavity shape and size identical, and when the equal in length of each topic piece, and seal pastes the plus-minus topic of different tens or multiplication and division topic and the result of calculation "=" of units Behind what and the corresponding pattern, will inscribe two sections of the front and back that piece is cut into different size before the equal sign of arithmetic problem again, and during computing, only have two sections of the front and back of topic piece are put into, and just be full of the topic groove, operation result is correct, electronic circuit ability conducting luminous and sounding type.

Topic groove (3) can be made empty rectangular parallelepiped, semicolumn or prismatic.

The acousto-optic electronic circuit is by light emitting diode D ₁, D ₂Pass through resistance R ₂In parallel after the current limliting with loudspeaker, IC ₁With R ₁, C ₁Constitute oscillation frequency control circuit, IC ₂Constitute oscillatory trigger circuit, IC by K switch ₄Be output stage, output signal promotes the loudspeaker sounding after BG amplifies, and it is glittering to promote light emitting diode simultaneously.

The utility model is achieved in that puts into the topic groove with the leading portion of topic piece, and result of calculation is correct, selects topic piece back segment and puts into the topic groove, and two sections just are full of the topic groove before and after the topic piece, and promote spring and touch and excite moving switch, the conducting of acousto-optic electronic circuit, acoustic luminous.As the erroneous results that calculates, put into the topic groove for two sections before and after the topic piece of then selecting, two sections can not be full of the topic groove before and after the topic piece, and spring can not act on, and then the acousto-optic electronic circuit is in off-state, can not be acoustic luminous.

The utlity model has following advantage:

1. children can repeat calculation, can improve computing power and computing velocity rapidly, and own computing detects, and does not need others' help.

Children arithmetic computing detecting device will learn with amusement in one, interesting strong.Computing is correct, can listen melodious music and see flash of light, and is conscious or grasp needed knowledge unconsciously.

3. novel in design, profile variation is many, and is simple in structure, and cost is low, can promote the use of in the vast town and country of China, and remarkable economic efficiency and social benefit are arranged.

Embodiment:

Children arithmetic computing detecting device such as Fig. 1 that the utility model provides; Shown in Figure 2, it has simple in structure, easily manufactured, detect box, topic groove, non-standard components such as topic piece, acousto-optic electrical equipment box and spring all can be made the acousto-optic electronic component at machinery or the mold pressing of plastic processing factory, ic chip (as KD560, KD420 etc.), light emitting diode, loudspeaker, resistance, electric capacity etc. all can be bought in market, and those skilled in the art or oldhand all can be by figure assembling, debugging.

Claims

1, a kind of children arithmetic computing detecting device, it is characterized in that this children arithmetic computing detecting device is provided with topic groove (2) by detecting box (1), place nonidentity operation formula topic piece (3) in the topic groove (2) in turn, the trigger switch of an end in spring (5) and acousto-optic electrical equipment box (4) that detects box (1) connects into integral body, is provided with the acousto-optic electronic circuit in the acousto-optic electrical equipment box (4).

2, according to the described children arithmetic computing of claim 1 detecting device, the computing topic piece (3) that it is characterized in that this detecting device should make with inscribe groove (2) in size shape identical, after topic piece (3) is gone up seal and pasted the multiplication and division topic and result of calculation "=" of the plus-minus topic of tens or units what reach corresponding pattern, will inscribe two sections of the front and back that piece is cut into different size before the equal sign of arithmetic problem again.

3,, it is characterized in that the topic groove (3) of this children arithmetic computing detecting device is empty semicolumn, rectangular post or prismatic according to claim 1 or 2 described children arithmetic computing detecting devices.

4, according to claim 1 or 2 described children arithmetic computing detecting devices, the acousto-optic electronic circuit that it is characterized in that this children arithmetic computing detecting device is by light emitting diode D ₁, D ₂Pass through resistance R ₂In parallel after the current limliting with loudspeaker, IC ₁With R ₁, C ₁Constitute oscillation frequency control circuit, IC ₂Constitute oscillatory trigger circuit by K switch.IC ₄Be output stage, output signal promotes the loudspeaker sounding after BG amplifies, and it is glittering to promote light emitting diode simultaneously.