CN2181720Y - Mathematics rudimental learning machine - Google Patents

Abstract

The utility model relates to a calculator, comprising a differential gear train, display wheels, one-way gear clutches, cylindrical gears, picture displaying strip boards, an input hand wheel, a connecting rod, a hexahedron labeled with an addition sign, a subtraction sign, an equal sign and Arabic figures, and display windows and window lids. The utility model can perform addition and subtraction operations within the number 20. The utility model has the functions of displaying pictures and the number value synchronously, and returning the number value to zero. Questions can be asked and can be changed by users, the operating formula form of the questions is the same as the form of the two question types commonly used by textbooks. The utility model is particularly suitable for children who begin to learn mathematics. The utility model can also be used as teaching aid. The utility model has the advantages of simple structure, low cost, convenient use and easy understanding.

Description

Mathematics rudimental learning machine

The utility model relates to a kind of counter.

In rudimentary maths initiation study, the situation that children can not understand number, plus sige, minus sign, the number of equaling implication well often occurs, wherein, especially children are difficult for concrete image and numeral are connected, separate again, in their brains, usually image is that image, numeral are numerals.Although 20 only have 20 with interior number, but the heads of a family usually for teaching child to rack one's brains, to a certain extent, child is the process of immunologing mathematics just, is exactly that the heads of a family learn one time 20 process with the addition, subtraction operation of interior number again.At present, the utensil that a kind of known title is a counter (Chinese CN2085978U, application number are 91203544.7) is approaching with the utility model, but this counter adopts register structure on the sound-track engraving apparatus, only just carry out the common counter of addition, subtraction operation, be difficult for being accepted by children.

The purpose of this utility model provides a kind of rudimentary maths initiation machine that can carry out 20 plus and minus calculations with interior number, can oneself set a question and change topic with image interpretation number, image and digital synchronous demonstration, children, helping child to understand the implication of numeral, plus sige, minus sign, the number of equaling from perception and rational two aspects, the help child tides over 20 smoothly with the adding of interior number, this rudimentary maths initiation difficulty of subtraction.

The utility model comprises a differential gear train, digital display wheel, ratchet clutch coupling, garden stud wheel, video picture batten, input manual pulley, connecting rod, be marked with add, the regular hexahedron of minus sign, the number of equaling, arabic numeral, by the display window and the corresponding display window lid thereof of two kinds of topic type arranged in form commonly used in the textbook.Differential gear train is a differential gear assembly, digital display wheel (referring to input, output digital display wheel) is the wheel disc that is marked with arabic numeral, the ratchet clutch coupling is the unidirectional jaw clutch that a kind of and garden stud wheel become one, the video picture batten be indicate certain pattern, the last batten that equates of greatest measure of pattern sum and input digital display wheel.

Advantage of the present utility model is to make core system with differential gear train, and two rotations input and two synthetic results of input rotation by the input of input manual pulley that take turns in the corresponding display window demonstration differential gear train with digital display promptly rotate the output result, and display window is pressed two kinds of topic type arranged in form commonly used in the textbook, and dispose corresponding window lid, demonstrate the image number that (the video picture batten rises video picture) equates with the Arabic numerical value of corresponding input digital display wheel demonstration synchronously with the video picture batten simultaneously.In differential gear train, for different rotation inputs, rotate output difference as a result, corresponding display result is also different.The utility model just is based on this theory, and the addition, subtraction operation of realization number and number and figure show synchronously.Finish after the once-through operation, press the video picture batten of rise, the numerical value in the corresponding display window all is returned to 0.Of the present utility model be also advantageous in that be marked with arabic numeral, add, the regular hexahedron of minus sign, the number of equaling makes to set a question instrument, make add, subtraction topic, the setting a question of topic of filling a vacancy have randomness, and import manual pulley with the open and close cooperation of display window lid and rotate the change that realizes the topic type and change topic, be easy to children and accept, cooperate teaching simultaneously.

Embodiment of the present utility model is provided by the following drawings.Specify principle of work of the present utility model and using method below in conjunction with accompanying drawing.

Accompanying drawing 1 is fundamental diagram of the present utility model and assembling relationship figure, and Fig. 2 is corresponding to digital display wheel, by the display window arrangenent diagram of two kinds of topic type arranged in form commonly used in the textbook.

With reference to accompanying drawing the 1,1,6, the 9th, making leaf spring, the 2,4,5, the 19th, differential garden bevel gear, their other physical dimensions except that the axis hole difference are identical.7, the 10, the 23rd, the tooth bar of band video picture batten, the bossing on it is the developing batten, the developing batten draws arbitrary graphics such as pentagram, apple at length direction calibration 20 lattice in the lattice, but must make three figures on the attached plate all consistent on the figure selecting.The 8th, garden stud wheel, the 13,14, the 21st, ratchet clutch coupling.When this machine of use, all display windows all cover with window, and wherein (see figure 2) is printed on plus sige "+" in the display window 31, are printed on minus sign "-" on 31 the window lid 26.The following describes and how to carry out additive operation.At first, open window lid 26, show plus sige.Manual pulley 12,22(see Fig. 1) be the input manual pulley, 20 and 17 is input digital display wheels.Digital display is taken turns 20 calibration, 20 lattice, lattice internal labeling 0 to 19, corresponding display window is that 24(sees Fig. 2).Open 24 window lid, just changing hands driving wheel 22(and seeing Fig. 1), make display window 24(see Fig. 2) demonstrate known summand, simultaneously, ratchet clutch coupling 21 drives video picture batten 23 risings that are attached thereto and demonstrates the image number that equates with summand numerical value.During counter-rotating manual pulley 22, ratchet clutch coupling 21 skids, and video picture this moment batten 23 does not rise, and continues to be inverted to the starting position, and counter-rotating two is changeed, and at this moment input value and output numerical value are got back to original position.The purpose of She Zhiing is to prevent to reverse by force when child from using this machine for the first time and damages tooth bar or gear teeth like this, so during normal the use, manual pulley 22 can only just be changeed.Calibration 20 lattice on the input digital display wheel 17 indicate two row's numerical value in the lattice, the reverse mark 0 to 19 of difference, the display window of its left side numerical value correspondence is that 30(sees Fig. 2), the display window of right side numerical value correspondence is 29.Open 30 window lid, just changing hands driving wheel 12(and seeing Fig. 1), make display window 30 demonstrate known addend, ratchet clutch coupling 13 drives video picture batten 10 risings that are attached thereto and demonstrates the image number that equates with addend numerical value simultaneously, and ratchet clutch coupling 14 skids at this moment.15 and 18 is two output digital display wheels, calibration is 40 lattice, equal mark 0 to 39 in the lattice, the numeric indicia direction is also identical, but digital display is taken turns 0 of 15 lattice internal labelings and is taken turns 35 of 18 lattice internal labelings with digital display and align, and makes this machine display window 27 when carrying out plus and minus calculation see Fig. 2 with 28(like this) numerical value that shows is identical.The display window that digital display is taken turns 18 correspondences is 27, and the display window that digital display is taken turns 15 correspondences is 28.15 and 18 connecting rods of being made by two transparent materials 16 are rigidly connected.Oblique line between the number of equaling and the display window 27 and 24,27 and 30 is printed on the casing, and it is corresponding to this kind topic type on the textbook.If corresponding topic type +=?, then open 28 window lid, it shows that numerical value is operation result; If corresponding topic type is " product " word topic type, then open 27 window lid, it shows that numerical value also is operation result.The last denumerable total number of images that goes out to rise conforms to the result.For subtraction, use the method input minuend identical with input summand in the above-mentioned additive operation, 23 also demonstrate the image number that equates with minuend numerical value simultaneously.Open 29 window lid, counter-rotating manual pulley 12, display window 29 demonstrates known subtrahend, simultaneously, gear on the ratchet clutch coupling 14 drives 7 risings of video picture batten by garden stud wheel 8 and demonstrates the image number that equates with subtrahend numerical value, and ratchet clutch coupling 13 skids at this moment.Open 28 window lid, it shows that numerical value is operation result.Last denumerablely go out the image number that minuend exceeds subtrahend and be total.No matter be to do addition, still do subtraction, after once-through operation finished, the video picture batten that should press all rises made pattern and numeral return zero, covers all window of opening lids simultaneously, for next computing is got ready.For the topic type of filling a vacancy, for example: +?=,?-=, " product " word topic type or the like, at first understand fully it is to do addition, still do subtraction, and mix corresponding "+" number or "-" number, and open the display window lid with the corresponding known number of topic type more respectively, just changing hands driving wheel 22, forward or reverse manual pulley 12, make the numerical value of " " the pairing display window demonstration in the topic type consistent with numerical value in the frame, open that at last institute asks "? " corresponding display window lid promptly obtains operation result.

Native attachment has:

2 of the regular hexahedrons of 1 label symbol are gone up the numbers of equaling of equal mark for one of them six, three face mark plus siges in six of the another ones, three face mark minus signs in addition.These two hexahedrons are all made background color with white, and symbol is write with redness.

16 of the regular hexahedrons of 2 reference numerals, wherein mark is 0 to 5 three, 6 to 11 3,12 to 17 3,18, three marks 19 of 18 to 19(three marks) three, these 12 hexahedrons are all made background color with green, numeral is write 20 to 25 1 of all the other marks, 26 to 31 1 with white, 32 to 37 1, all mark 38 one for six, these four hexahedrons are all made background color with blue look, and numeral is write with white.

3 six window lids are respectively applied for and cover display window 24,31,30,29,28,27, and wherein, mark minus sign on the window lid 26 is buckled when being used to do subtraction to demonstrate minus sign, and other window covers not label symbol.Window lid is all made background color with white, and wherein the minus sign on 26 is write with redness.

The native attachment using method is as follows:

1 takes out a white hexahedron that is printed on the number of equaling earlier, optional again two or three hexahedron.

The 2 usefulness hands hexahedron of being taken out of dishing out just can obtain all possible topic type of filling a vacancy at random, for example: and-=?, +=?,-?=?,? +=?,?=?,?-?=, +?=?,?-=?,? +?=or the like.If for subtraction topic type, then must be that minuend is more than or equal to subtrahend.

Annotate: blue look hexahedron only occurs in addition is filled a vacancy the topic type, and can only be used as total.

In order to be tester with the display window, this machine designs a chain-wales before display window and the topic type contrasts, as the usefulness of guiding.Oneself solve a problem immediately after setting a question, you are thought that the number that should fill out or symbol are placed on corresponding display window before, be the end of filling a vacancy.

3 open the corresponding display window of known number, by giving known number with add, minus sign rotates right-hand man's driving wheel makes institute give several and corresponding display window shows several identical, and then open the corresponding display window of buckling, whether whether the comparison display window shows number identical correct to determine that you are solved a problem with the respective counts or the symbol of your placement, changes the topic effect thereby play.

This machine of use explanation: for the children of first immunologing mathematics, at first should learn how to use this machine, and then with the image on the developing batten carry out the image addition, subtraction operation, after treating to have the knack of, cooperate again numerical value show with image and two kinds of methods of numerical value guide children from the concrete image thinking to abstract logic thinking transition, and children can be got a real idea of to plus sige, minus sign, the number of equaling and basic numerical operation, several implication etc.At last, take down the figure on the video picture batten, allow children carry out the pure values computing, can skilled 20 behind the addition, subtraction operation with interior number as children, this machine has also promptly been finished its mission.

This machine except that the axle of screw, nut, spring, reed, axle 11 and axle 11 same axis,, packing ring etc. makes with steel, axle 3 and other annex and member are all made with engineering plastics.

Claims (8)

1, a kind of 20 counters that are used for the plus and minus calculation of interior number, title is the rudimentary maths initiation machine, have and be used to import the synthetic equalizing gear 2 of rotation, 4,5,19, show the input digital display wheel 20 that rotates input, 17, the output digital display wheel 18 that shows the synthetic result of input rotation, 15 and show the video picture batten 23 of the band tooth bar that rotates input with image, 7,10 and take turns corresponding display window with digital display, it is characterized in that the tooth bar on the video picture batten 23 is meshed with gear on the ratchet clutch coupling 21 that only transmits one-directional rotation input, tooth bar on the video picture batten 10 is meshed with gear on the ratchet clutch coupling 13 that only transmits one-directional rotation input, tooth bar on the video picture batten 7 is meshed with garden stud wheel 8, garden stud wheel 8 also is meshed with gear on the ratchet clutch coupling 14 that only transmits one-directional rotation input, the numerical value of mark shows in display window 24 on the input digital display wheel 20, the numerical value of the reverse mark of two rows shows in display window 30 and 29 respectively on the input digital display wheel 17, the numerical value of mark shows in display window 27 on the output digital display wheel 18, and the numerical value of mark shows in display window 28 on the output digital display wheel 15.

2, by the described rudimentary maths initiation machine of claim 1, it is characterized in that with display window lid, be printed on add, the regular hexahedron of minus sign, the number of equaling, arabic numeral forms native attachment, and the instrument of doing to set a question, realize the randomness of setting a question according to the difference of selected regular hexahedron simultaneously.

3,, it is characterized in that exporting digital display wheel 18 and 15 usefulness and be rigidly connected by the connecting rod 16 of transparent material making by the described rudimentary maths initiation machine of claim 1.

4,, it is characterized in that importing digital display wheel 20 and 17 equal calibration 20 lattice, tag value 0 to 19 respectively in its lattice by the described rudimentary maths initiation machine of claim 1.

5, by claim 1 and 4 described rudimentary maths initiation machines, it is characterized in that three blocks of video picture battens 23,7,10 equal calibration 20 lattice in the longitudinal direction, in its lattice separately the pattern of mark sum equate with the greatest measure that corresponding input digital display is taken turns mark on 20 and 17.

6,, it is characterized in that exporting digital display wheel 18 and 15 equal calibration 40 lattice, tag value 0 to 39 respectively in its lattice by the described rudimentary maths initiation machine of claim 1.

7, by the described rudimentary maths initiation machine of claim 6, the lattice that it is characterized in that exporting tag value " 0 " on the digital display wheel 15 are relative with the lattice that the output digital display is taken turns tag value " 35 " on 18.

8,, it is characterized in that display window 24,31,30,29,28,27 is by two kinds of topic types " +=" and " product " word topic type arranged in form commonly used on the textbook by the described rudimentary maths initiation machine of claim 1.

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