CN211604443U

CN211604443U - Novel digital operation teaching aid

Info

Publication number: CN211604443U
Application number: CN201921999959.5U
Authority: CN
Inventors: 杨笑红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-24
Filing date: 2019-01-24
Publication date: 2020-09-29
Anticipated expiration: 2029-01-24
Also published as: CN209765818U

Abstract

The utility model relates to a teaching tool's technical field, novel digital operation teaching aid includes pivot, digital carousel and operation carousel, is provided with digital identification on digital carousel's annular lateral surface, is provided with the operation identification on the annular lateral surface of operation carousel, its characterized in that still includes the support, positioner and impeller, positioner includes gear carousel, ball and spring, gear carousel sets up in the pivot and fixes mutually with digital carousel or operation carousel, the ball contacts with gear carousel, the one end and the ball of spring contact, the other end and the support of spring are fixed mutually, the operation carousel includes arithmetic operation carousel and comparison operation carousel. The utility model provides a digit carousel and operation carousel position limit and the comparatively difficult problem of position regulation among the prior art, be fit for using in the teaching and the exercise of digital operation.

Description

Novel digital operation teaching aid

The application is a divisional application of patent applications with application dates of 2019, 1, 24 and application number of 201920117363.1 and the name of the invention of a novel digital operation teaching aid.

Technical Field

The utility model relates to a teaching tool's technical field especially relates to a teaching aid for digital operation.

Background

Chinese patent with patent grant publication No. CN 207833732U (application No. 201721407486.6) discloses a digital operation teaching aid, which comprises a digital turntable, an operation turntable, and a connecting rod; the structure of the digital turntable and the operation turntable is a three-dimensional annular structure, a plurality of first limiting parts are arranged on the annular inner sides of the digital turntable and the operation turntable, a plurality of digital marks are arranged on the annular outer side surface of the digital turntable, a plurality of operation marks are arranged on the annular outer side surface of the operation turntable, and the first limiting parts correspond to the digital marks or the operation marks one by one; the connecting rod is provided with a plurality of second limiting parts, the connecting rod penetrates through annular inner side circular rings of the digital turntable and the operation turntable so that the digital turntable and the operation turntable are connected in series on the connecting rod in parallel, the second limiting parts correspond to the digital turntable or the operation turntable one by one, and the second limiting parts and the first limiting parts are meshed with each other to control the rotation of the digital turntable or the operation turntable; the number of the digital turntables connected in series by the connecting rods is at least two, and the number of the operation turntables connected in series is at least one. The digital operation teaching aid has the characteristics of visual image, convenience in use, wide application range and the like, but the orientation limitation and the orientation adjustment of the digital turntable and the operation turntable are difficult, so that the digital operation teaching aid needs to be optimized or improved.

Disclosure of Invention

The utility model aims at providing a novel digital operation teaching aid makes the position of corresponding digital carousel and operation carousel injectd and the position is adjusted comparatively easily.

In order to achieve the purpose of the utility model, the utility model discloses a technical scheme be: a novel digital operation teaching aid, it includes: the device comprises a rotating shaft, at least three digital turntables arranged on the rotating shaft, and at least two operation turntables arranged on the rotating shaft, wherein the structures of the digital turntables and the operation turntables are all in a three-dimensional annular structure, a plurality of digital marks are arranged on the annular outer side surface of the digital turntables, and at least one operation mark is arranged on the annular outer side surface of the operation turntables, the device is characterized by also comprising a bracket, a plurality of positioning devices and a plurality of pushing pieces, the rotating shaft is fixed on the bracket, the positioning devices are used for positioning the digital turntables or the operation turntables, each positioning device comprises a gear turntable, a ball and a spring, the gear turntable is arranged on the rotating shaft and is fixed with the digital turntables or the operation turntables, the ball is contacted with the gear turntable, one end of the spring is contacted with the ball, the other end of the spring is fixed with the bracket, the pushing piece is fixed on the annular outer side surface of the digital turntable or the operation turntable, and the digital turntable, the operation turntable and the gear turntable can rotate around the rotating shaft.

Compared with the prior art, because the utility model discloses set up the impeller, can make the staff conveniently apply the moment of revolving the rotation to digital carousel or operation carousel through the impeller to promote digital carousel or operation carousel to revolve the rotation in order to change the position of digital carousel or operation carousel easily, the change of its position can realize the change of the number sign that is located on the digital carousel or the change of the operation sign that is located on the operation carousel, in order to realize the different operations that carry out between the numbers; and because the utility model discloses set up positioner for digit carousel or operation carousel during operation are accurate location easily, are showing the stability and the reliability that have improved the operation.

Usually, each numerical carousel is provided with a corresponding positioning device, and each calculation carousel is also provided with a corresponding positioning device.

Preferably, the number of the positioning devices is equal to the sum of the number of the digital turntables and the number of the operation turntables.

Preferably, the operation dial comprises an arithmetic operation dial and a comparison operation dial, wherein at least one of the at least two operation dials comprises an arithmetic operation mark and a comparison operation mark, the annular outer side surface of the arithmetic operation dial is provided with at least one arithmetic operation mark, and the annular outer side surface of the comparison operation dial is provided with at least one comparison operation mark.

Preferably, the arithmetic operation identifier includes four identifiers of +, one, x, and ÷ (i.e., addition, subtraction, multiplication, and division), and the comparison operation identifier includes four identifiers of =, <, >, ≠ (i.e., equal to, less than, greater than, and not equal to).

The other end of the spring is fixed with the bracket, namely the other end of the spring is directly fixed with the bracket, or the other end of the spring is indirectly fixed with the bracket through other objects.

The bracket can be a U-shaped bracket, and can also be a bracket with other shapes.

Preferably, the support is a U-shaped support, the positioning device further comprises a housing, the spring is disposed in the housing, and the other end of the spring is fixed to the support through the housing.

The digital identifier typically includes ten

identifiers

0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

Preferably, the cross section of the digital rotating disk and the cross section of the operation rotating disk are regular polygons with central hole positions. More preferably, the cross section of the digital rotating disk and the cross section of the operation rotating disk are both regular decagon with central hole position.

In a preferred embodiment, a plurality of the digital marks are uniformly arranged on the annular outer side surface of the digital turntable, and a plurality of the operation marks are uniformly arranged on the annular outer side surface of the operation turntable.

In another preferred embodiment, the cross section of the digital rotating disk and the cross section of the operation rotating disk are both regular decagon with a central hole position, and the annular outer side surface corresponding to each side is provided with one digital mark or one operation mark.

Drawings

Fig. 1 is a schematic front structural view of an embodiment of the novel digital operation teaching aid of the present invention.

Fig. 2 is a cross-sectional view of the digital rotary disk and a pusher member secured to the digital rotary disk in the embodiment of fig. 1.

Fig. 3 is a cross-sectional view of the positioning device in the embodiment shown in fig. 1.

Detailed Description

Fig. 1 is a schematic front structural view showing an embodiment of the novel teaching aid for digital operation of the present invention, fig. 2 is a cross-sectional view of a digital rotary table and a pushing member fixed on the digital rotary table in the embodiment shown in fig. 1, and fig. 3 is a cross-sectional view of a positioning device in the embodiment shown in fig. 1. As can be seen from fig. 1, 2 and 3, the novel digital operation teaching aid 100 of the present embodiment includes a support 5, a rotating shaft 1 fixed on the support 5, four digital rotating disks 2 arranged on the rotating shaft 1, two

operation rotating disks

3 and 4 arranged on the rotating shaft 1, a plurality of pushing

members

7 and 6 positioning devices 6. Obviously, the number of positioning devices is equal to the sum of the number of digital turntables and the number of operation turntables.

As can be easily seen from fig. 1 and 2, the structure of the digital rotary disk is a three-dimensional ring structure, the cross section of the digital rotary disk 2 is a regular decagon with a central hole 13, and a pushing member 7 is arranged at the junction of two adjacent sides. In the present embodiment, ten pushing members 7 are fixed to each digital rotary disk 2, so that a human hand can easily contact the pushing members 7 and apply a force to the pushing members 7, thereby easily pushing the digital rotary disk 2 to rotate about the rotary shaft 1 to change the orientation of the digital rotary disk 2. In the present embodiment, ten

numeric marks

0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are uniformly arranged on the annular outer side surface of the digital rotary disk 2.

The structure of the operation

rotary discs

3 and 4 of the embodiment is also a three-dimensional annular structure, the cross section of the operation rotary disc is also a regular decagon with a central hole, and a pushing piece 7 is arranged at the junction of two adjacent sides. The operation dial of the present embodiment includes an arithmetic operation dial 3 and a comparison operation dial 4, and the arithmetic operation dial 3 is very similar to the comparison operation dial 4 except that the operation marks provided on the annular outer side surface thereof are different. In the present embodiment, four kinds of marks, i.e., =, <, >, ≠ are provided on the annular outer side surface of the arithmetic operation dial 3, and four kinds of marks, i.e., =, <, >, are provided on the annular outer side surface of the comparison operation dial 4. A plurality of same type marks may be provided on the annular outer side surface of the arithmetic operation dial 3 or the comparison operation dial 4 as necessary.

In this embodiment, the bracket 5 is a U-shaped bracket, two ends of the rotating shaft 1 are fixed on the bracket 5, in this embodiment, each digital rotating disk 2 corresponds to one positioning device, and each

operation rotating disk

3, 4 also corresponds to one positioning device. The positioning device 6 of the present embodiment includes a gear wheel 8, a ball 9, a spring 10 and a housing 11, wherein the gear wheel 8 is a gear wheel with a central hole 12, the gear wheel 8 is disposed on the rotating shaft 1 and fixed with the digital wheel 2 or the

operation wheel

3, 4, the spring 10 is disposed in the housing 11, the ball 9 is partially disposed in the housing 11 and contacts with the gear wheel 8, one end of the spring 10 contacts with the ball 9, the other end of the spring 10 is fixed with the housing 11, the housing 11 is fixed with the bracket 5, that is, the other end of the spring 10 is fixed with the bracket 5 through the housing 11. The digital rotary table 2, the operation rotary tables 3 and 4 and the gear rotary table 8 of the present embodiment can rotate around the rotary shaft 1.

In this embodiment, each digital turntable 2 or

operation turntable

3, 4 is provided with a corresponding positioning device, so that each digital turntable or operation turntable is easy to position accurately when working, and the stability and reliability of the operation are improved.

The following describes the actual operation or use of the novel digital operation teaching aid shown in fig. 1. For the sake of convenience in the following description, the four number carousels 2 in fig. 1 are named a first number carousel, a second number carousel, a third number carousel and a fourth number carousel from left to right.

Specifically, taking the addition of single digit as an example, as shown in fig. 1, the calculation formula is 2+7, and the operation steps are as follows:

step 1: rotary turntable

The following turntables on the rotating shaft 1 are respectively rotated by contacting the pushing pieces 7 on the corresponding turntables by hands: the first number wheel "2", the arithmetic operation wheel 3 "+", the second number wheel "7", and the comparison operation wheel 4 "═ so that the number or operation symbol of each wheel rotation corresponds to the indication mark one to one.

Step 2: calculation results

And calculating according to a calculation formula 2+7 to obtain 9, and correspondingly rotating a third digital turntable '0' and a fourth digital turntable '9' by contacting a pushing piece 7 positioned on the corresponding turntables with a human hand so as to enable the rotating numbers of the two turntables to correspond to the indication marks.

Repeating the

above steps

1 and 2, the operations of addition, subtraction, multiplication and division of the single digit can be repeatedly practiced.

The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.

Claims

1. A novel digital operation teaching aid, it includes: the digital rotary table comprises a rotating shaft, at least three digital rotary tables arranged on the rotating shaft and at least two operation rotary tables arranged on the rotating shaft, wherein the structures of the digital rotary tables and the operation rotary tables are of three-dimensional annular structures, a plurality of digital marks are arranged on the annular outer side surface of the digital rotary tables, at least one operation mark is arranged on the annular outer side surface of the operation rotary tables, the digital rotary table is characterized by further comprising a support, a plurality of positioning devices and a plurality of pushing pieces, the rotating shaft is fixed on the support, the positioning devices are used for positioning the digital rotary tables or the operation rotary tables, each positioning device comprises a gear rotary table, a ball and a spring, the gear rotary table is arranged on the rotating shaft and fixed with the digital rotary tables or the operation rotary tables, the ball is in contact with the gear rotary table, and one end of the spring is in contact with the, the other end of the spring is fixed with the bracket, the pushing piece is used for pushing the digital turntable or the operation turntable to rotate around the rotating shaft so as to change the direction of the digital turntable or the operation turntable, the pushing piece is fixed on the annular outer side surface of the digital turntable or the operation turntable, the digital turntable, the operation turntable and the gear turntable can rotate around the rotating shaft, the operation turntable comprises an arithmetic operation turntable and a comparison operation turntable, at least one arithmetic operation turntable and one comparison operation turntable are arranged in the at least two operation turntables, the operation identifier comprises an arithmetic operation identifier and a comparison operation identifier, at least one arithmetic operation mark is arranged on the annular outer side surface of the arithmetic operation turntable, and at least one comparison operation mark is arranged on the annular outer side surface of the comparison operation turntable.

2. A novel teaching aid for digital operations according to claim 1, wherein the arithmetic operation identifier comprises +, one, x, and/or and the comparison operation identifier comprises =, <, >, ≠ or.

3. A novel teaching aid for digital operations as claimed in claim 1, wherein the digital identification comprises 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

4. A novel teaching aid for digital operation according to claim 1, wherein the cross section of the digital rotary disk and the cross section of the operation rotary disk are regular decagon with central hole position.

5. The novel digital operation teaching aid according to claim 1, wherein a plurality of the digital signs are uniformly arranged on the annular outer side surface of the digital rotating disk, and a plurality of the operation signs are uniformly arranged on the annular outer side surface of the operation rotating disk.

6. The novel digital operation teaching aid of claim 1, wherein the cross section of the digital rotating disc and the cross section of the operation rotating disc are regular decagon with a central hole, and the annular outer side surface corresponding to each side is provided with one digital mark or operation mark.