CN216211553U

CN216211553U - Decimal point shifter

Info

Publication number: CN216211553U
Application number: CN202122316311.7U
Authority: CN
Inventors: 刘玉才
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-05
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a decimal point mover which comprises a bridge-shaped support, a plurality of digital disc groups and magnetic sheet decimal points, wherein each digital disc group comprises an inner disc and an outer disc, the inner disc is rotatably sleeved in the outer disc, the inner discs are sequentially fixed on the bridge-shaped support at equal intervals, the digital disc groups comprise six groups, each outer disc is sequentially provided with ten numbers ranging from 0 to 9 and a blank space, the magnetic sheet decimal points are adsorbed between two adjacent digital disc groups, and a cushion block is arranged at the bottom of the bridge-shaped support. The utility model has simple structure and convenient use, can conveniently and visually display a plurality of decimal points with different numerical values by moving the decimal point of the magnetic sheet, leads students to know the change rule of the decimal point after moving, saves time and labor for teaching activities, has strong space concept and is easy to understand by the students.

Description

Decimal point shifter

Technical Field

The utility model relates to the technical field of teaching aids, in particular to a decimal point mover.

Background

In the teaching at present, the problem of calculating the movement of decimal point is that generally, on paper or a blackboard, one decimal point is moved, after the movement is finished, only the last decimal point is reserved, and other decimal points are erased. Due to the lack of visual impression of students and poor learning effect, a certain part of students still do not know which points to wipe, and errors are caused. Even with a pen dotted point, the above error occurs.

Also release some decimal points and remove teaching aid simultaneously on the market, be CN201120520969.3 like the patent number, the name is a patent of digital displacement demonstration teaching aid, provides a digital displacement demonstration teaching aid, belongs to the teaching aid field. The teaching aid structurally comprises a box body, wherein ten square holes are formed in the upper part of the upper surface of the box body, digital rotating wheels are arranged below the square holes in the box body and correspond to the digital rotating wheels, positioning columns are arranged on two sides of the upper surface of the box body respectively, a connecting line is arranged between the positioning columns and connected with two ends of the connecting line, and a sliding ball penetrates through the connecting line; a sliding groove is formed between the positioning columns, namely the upper surface of the box body, and the lower part of the sliding ball is in contact with the sliding groove.

But the decimal point sets up on the teaching aid body, can't take off the removal, and in the demonstration process, repeated demonstration must begin from the beginning in the demonstration process, at the in-process of round trip movement decimal point, causes student's puzzlement easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a decimal point mover which is simple in structure, can intuitively demonstrate movement of decimal points and is convenient for students to understand the change rule of decimal points.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model discloses a decimal point mover which comprises a bridge-shaped support, a plurality of digital disc groups and magnetic sheet decimal points, wherein each digital disc group comprises an inner disc and an outer disc, the inner disc is rotatably sleeved in the outer disc, the inner discs are sequentially fixed on the bridge-shaped support at equal intervals, the digital disc groups comprise six groups, each outer disc is sequentially provided with ten numbers ranging from 0 to 9 and a blank space, the magnetic sheet decimal points are adsorbed between two adjacent digital disc groups, and a cushion block is arranged at the bottom of the bridge-shaped support.

The front surface and the back surface of the inner disc are symmetrically provided with annular grooves, balls are arranged in the annular grooves, and the outer disc is sleeved on the outer sides of the balls.

The digital disc group is in a circular ring shape.

And a digital band is arranged on the outer disc of the digital disc group, and numbers 0 to 9 are printed on the digital band.

The outer disc of the digital disc group is uniformly provided with vertical faces for carving numbers, and the number of the vertical faces is eleven.

The outer surface of the decimal point of the magnetic sheet is coated with bright color.

And an anti-skid gasket is embedded at the bottom of the cushion block.

Compared with the prior art, the utility model has the beneficial technical effects that:

the utility model has simple structure and convenient use, can conveniently and visually display a plurality of decimal points with different numerical values by moving the decimal point of the magnetic sheet, leads students to know the change rule of the decimal point after moving, saves time and labor for teaching activities, has strong space concept and is easy to understand by the students.

Drawings

The utility model is further illustrated in the following description with reference to the drawings.

FIG. 1 is a schematic diagram of a decimal point shifter of the present invention;

FIG. 2 is a first embodiment of a digital disk pack;

FIG. 3 is a second embodiment of a digital disk pack;

description of reference numerals: 1. a bridge-like scaffold; 2. a digital disk group; 3. a magnetic disk decimal point; 4. and a cushion block.

Detailed Description

As shown in fig. 1, a decimal point shifter comprises a bridge-shaped support 1, a plurality of digital disc sets 2 and magnetic sheet decimal points 3, wherein each digital disc set 2 comprises an inner disc and an outer disc, the inner disc is rotatably sleeved in the outer disc, the inner discs are sequentially fixed on the bridge-shaped support 1 at equal intervals, the digital disc sets 2 comprise six groups, each outer disc is sequentially provided with 0 to 9 digits and a blank space, the magnetic sheet decimal points 3 are adsorbed between the two adjacent digital disc sets 2, and a cushion block 4 is arranged at the bottom of the bridge-shaped support 1.

In this embodiment, digital dish group 2 adopts the metal material, makes magnetic sheet decimal point 3 adsorb on digital dish group 2, simplifies the fixed knot structure of decimal point, and is difficult for losing, and the decimal point can remove at will in the use, and the teacher's of being convenient for demonstrates, alleviates teacher's teaching burden.

For reference, in a combination form of the digital disc assembly 2, annular grooves are symmetrically formed on the front and back surfaces of the inner disc, balls are arranged in the annular grooves, and the outer disc is sleeved outside the balls. In the embodiment, the inner disc is fixed on the bridge-shaped support 1, and the outer disc can rotate 360 degrees relative to the inner disc, so that different digital arrangements are realized.

Wherein, the outer disc is annular. As a first embodiment of the outer disc structure, referring to fig. 2, the outer disc of the digital disc set 2 is provided with a digital band, the digital band is printed with numbers 0 to 9, and the digital band is sequentially wound on the outer disc of the digital disc set 2 with a space left on the outer disc. The digital band of this embodiment is glued by ten labels and is glued and constitute together, has printed a digit on every label, can leave the mark on the label through oil pen, can be used to mark the digit of digit, and the teacher of being convenient for imparts knowledge to students and uses, and is convenient for change digital label.

Referring to fig. 3, the outer disc of the digital disc set 2 is provided with vertical surfaces uniformly distributed for engraving numbers, the number of the vertical surfaces is eleven, and one vertical surface is a blank surface. The embodiment is not easy to wear and is firm and durable.

Specifically, the outer surface coating of magnetic sheet decimal point 3 has bright colour, attracts student's attention, promotes the interest of teaching for the removal demonstration of decimal point is more directly perceived.

Specifically, the bottom of the cushion block 4 is embedded with an anti-skid gasket, so that the stability of the bridge-shaped support 1 is improved.

The using process of the utility model is as follows:

firstly, according to the teaching requirement, manual rotation digital disk group 2, adjust the figure that the outer dish will show, all outer dishes all adjust the blank check of outer dish before the highest digit, pick up magnetic sheet decimal point 3 simultaneously, place the assigned position, guarantee that magnetic sheet decimal point 3 adsorbs between two adjacent digital disk group 2, at this moment, according to decimal point displacement requirement, manual removal magnetic sheet decimal point 3 shows the law that the decimal point removed the back decimal change, realizes the teaching purpose.

The utility model has simple structure and intuitive operation, is convenient for students to understand and simultaneously reduces the teaching burden of teachers.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.

Claims

1. A decimal point mover characterized by: including bridge support (1), a plurality of digital dish group (2) and magnetic sheet decimal point (3), digital dish group (2) are including inner disc and outer dish, the rotatable cover of inner disc is established outer in the dish, the inner disc is fixed in proper order the equidistance bridge support (1) is last, digital dish group (2) have six groups, every be equipped with 0 to 9 ten numbers and a blank on the outer dish in proper order, magnetic sheet decimal point (3) adsorb between two adjacent digital dish groups (2), the bottom of bridge support (1) is equipped with cushion (4).

2. The decimal point mover of claim 1, wherein: the front surface and the back surface of the inner disc are symmetrically provided with annular grooves, balls are arranged in the annular grooves, and the outer disc is sleeved on the outer sides of the balls.

3. The decimal point mover of claim 1, wherein: the digital disc group (2) is in a ring shape.

4. The decimal point mover of claim 3, characterized in that: and a digital band is arranged on an outer disc of the digital disc set (2), and numbers 0 to 9 are printed on the digital band.

5. The decimal point mover of claim 3, characterized in that: the outer disc of the digital disc group (2) is provided with eleven vertical faces which are uniformly distributed for carving numbers.

6. The decimal point mover of claim 1, wherein: the outer surface of the magnetic sheet decimal point (3) is coated with bright color.

7. The decimal point mover of claim 1, wherein: and an anti-skid gasket is embedded at the bottom of the cushion block (4).