CN214175332U

CN214175332U - Primary school's mathematical computation teaching presentation device

Info

Publication number: CN214175332U
Application number: CN202120254523.4U
Authority: CN
Inventors: 孙秀丽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-10
Anticipated expiration: 2031-01-29

Abstract

The application discloses primary school's mathematical computation presentation device, including rectangle protecgulum, slot, rectangle concave surface, bar slide opening, direction spout, T type slider, digit circle piece, rectangle window, rectangle back frame, inserted block, plus sign button, USB socket, subtract the number button, take advantage of the number button, remove the number button, digit keypad, digital display, switch, direction slider, bar iron plate, circle flat chamber, annular magnet, pivot, rectangle magnet, PCB control panel and annular iron sheet. This application is rational in infrastructure, the mathematical computation title that can show is presented on digital display, reach the effect that the title shows the title, through moving up the T type slider in the bar slotted hole and according to each step plus-minus take advantage of divide the operation step with T type sliding block group successive layer distribute from top to bottom, can form the calculation distribution diagram, be favorable to the clear every step of algorithm of understanding of student, improve the comprehensibility of knowledge point, be convenient for make up the operation array, be convenient for remove the back with T type slider and fix.

Description

Primary school's mathematical computation teaching presentation device

Technical Field

The application relates to a calculation teaching demonstration device, in particular to a primary school mathematical calculation teaching demonstration device.

Background

Primary school mathematics is through teaching materials, teaches children's understanding about the number, four arithmetic, the computational formula of figure and length, unit conversion a series of knowledge, for junior middle school and daily life's calculation lays a good mathematics foundation, and the dutch education family friedennuel thinks: "mathematics is derived from reality, must also be rooted in reality, and is applied to reality. "indeed, modern mathematics requires that we observe the world with the eyes of mathematics, use mathematical languages to describe the world, and from the psychological point of learning mathematics for young students, the learning process of students is not a passive absorption process, but a reconstructed process based on existing knowledge and experience, so doing middle school and playing middle school, transforming abstract mathematical relationships into familiar cases in the life of students, will make children learn more initiatively, and from our educational objectives, we should pay more attention to the comprehensive abilities of observing, analyzing and applying students while teaching knowledge.

The mixed mathematics of primary school needs more knowledge points of mastering, and in a section of mathematics class, some students still can not be fine grasp knowledge points, need mr to decompose the mathematics subject and form the step distribution diagram and supply the student to deepen understanding. Therefore, a primary school mathematical computation teaching demonstration device is provided for solving the problems.

Disclosure of Invention

A primary school mathematical computation teaching demonstration device comprises a rectangular front cover, a sliding fixing component, a digital turning component and a question setting component, wherein the rectangular front cover is fixedly arranged on a rectangular rear frame opening, and a rectangular concave surface is formed in the front end surface of the rectangular front cover;

the sliding fixing assembly comprises a strip-shaped sliding hole, a guide sliding block, a T-shaped sliding block, a strip-shaped iron block and a rectangular magnet, the strip-shaped sliding hole is connected with the T-shaped sliding block in a sliding mode through the guide sliding block, the strip-shaped iron block is installed on the end face of the inner side end of the T-shaped sliding block, and the strip-shaped iron block and the rectangular magnet are fixed together in a magnetic attraction mode;

the digital turning assembly comprises a digital round block, annular magnets, a rotating shaft and annular iron sheets, the digital round block is mutually and rotatably connected with the side walls of the two sides in the flat round cavity through the rotating shaft, the annular surface part of the digital round block exceeds the rectangular window, the two annular magnets are in a group, the two annular magnets are arranged on the round walls of the two sides of the digital round block, and the annular magnets and the annular iron sheets are mutually fixed together in a magnetic attraction manner;

the title setting assembly comprises a digital display and a PCB control panel, the digital display is installed on the top of the front end face of the rectangular front cover and electrically connected with corresponding electric connection ends of the PCB control panel through a flat cable, and the electric connection ends on the PCB control panel are electrically connected with a plus key, a minus key, a multiplier key, a minus key, a digital key group and a power switch respectively.

Furthermore, the rectangular magnet is installed in the rectangular rear frame, and the plug block groups are regularly distributed on the opening surface of the rectangular rear frame.

Furthermore, the rectangular front cover opening surface is regularly distributed with slot groups, and the slot groups and the insert block groups are correspondingly inserted and fixed together.

Further, nine bar slide holes are formed in the bottom of the rectangular concave surface, and the bar slide holes are arranged at equal intervals.

Further, the side walls of the two sides in the strip-shaped sliding hole are provided with guide sliding grooves, and the guide sliding grooves are connected with the guide sliding blocks in a sliding mode.

Furthermore, the flat and round cavity is formed inside the T-shaped sliding block and communicated with the front end face of the T-shaped sliding block through the rectangular window.

Furthermore, the annular iron sheets are divided into two groups, and the two annular iron sheets of the same group are respectively arranged on the circular walls on the two sides in the same flat circular cavity.

Further, the annular surface of the digital round block is printed with 0 to 9 numbers.

Furthermore, the T-shaped sliding blocks are in a group of six, and the six T-shaped sliding blocks in the same group are slidably mounted in the same strip-shaped sliding hole.

Furthermore, the PCB control board is fixedly installed at the inner top of the rectangular front cover and electrically connected with the electric connection end of the USB socket through a wire.

The beneficial effect of this application is: the application provides a presentation device for primary school's mathematical computation teaching can expand the distribution of calculation step and can strengthen knowledge point comprehensiveness.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a perspective view of the overall structure of one embodiment of the present application;

FIG. 2 is a perspective view of a T-shaped slider structure according to an embodiment of the present application;

FIG. 3 is a schematic view of a T-shaped slider and a digital round block connection structure according to an embodiment of the present application;

FIG. 4 is a schematic view of an inner side structure of a rectangular rear frame according to an embodiment of the present application;

FIG. 5 is a front view of a rectangular front cover configuration according to one embodiment of the present application;

FIG. 6 is a cross-sectional view of a T-shaped slider structure according to one embodiment of the present application.

In the figure: 1. the key comprises a rectangular front cover, 101, a slot, 2, a rectangular concave surface, 3, a strip-shaped sliding hole, 301, a guide sliding groove, 4, a T-shaped sliding block, 5, a digital round block, 6, a rectangular window, 7, a rectangular rear frame, 701, an insertion block, 8, a plus key, 9, a USB socket, 10, a minus key, 11, a number riding key, 12, a number eliminating key, 13, a digital key group, 14, a digital display, 15, a power switch, 16, a guide sliding block, 17, a strip-shaped iron block, 18, a round flat cavity, 19, an annular magnet, 20, a rotating shaft, 21, a rectangular magnet, 22, a PCB control panel, 23 and an annular iron sheet.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1-6, a primary school mathematics calculation teaching demonstration device comprises a rectangular front cover 1, a sliding fixing component, a digital turning component and a theme setting component, wherein the rectangular front cover 1 is fixedly arranged on the frame opening of a rectangular rear frame 7, and the front end surface of the rectangular front cover 1 is provided with a rectangular concave surface 2;

the sliding fixing assembly comprises a strip-shaped sliding hole 3, a guide sliding block 16, a T-shaped sliding block 4, a strip-shaped iron block 17 and a rectangular magnet 21, the strip-shaped sliding hole 3 is mutually connected with the T-shaped sliding block 4 in a sliding mode through the guide sliding block 16, the strip-shaped iron block 17 is installed on the end face of the inner side end of the T-shaped sliding block 4, and the strip-shaped iron block 17 and the rectangular magnet 21 are mutually fixed together in a magnetic attraction mode;

the T-shaped sliding blocks 4 in the strip-shaped sliding holes 3 move upwards and are distributed in the T-shaped sliding blocks 4 in the layer-by-layer mode according to each step of addition, subtraction, multiplication and division operation, calculation distribution maps can be formed, students can know algorithms of each step more clearly, and comprehensiveness of knowledge points is improved.

The digital turning assembly comprises a digital round block 5, annular magnets 19, a rotating shaft 20 and annular iron sheets 23, wherein the digital round block 5 is mutually and rotatably connected with the side walls of the two sides in the flat round cavity 18 through the rotating shaft 20, the annular surface part of the digital round block 5 exceeds the rectangular window 6, the annular magnets 19 are in a group of two, the two annular magnets 19 are arranged on the round walls of the two sides of the digital round block 5, and the annular magnets 19 and the annular iron sheets 23 are mutually fixed together in a magnetic attraction manner;

the corresponding numbers are displayed and exposed at the rectangular window 6 by shifting the digital round block 5 according to the data to be calculated or the calculated result data, the array of operations is convenient to combine, the digital round block 5 is shifted to be fixed by the magnetic attraction of the annular magnets 19 at the two sides and the corresponding annular iron sheet 23, meanwhile, the bar-shaped iron block 17 and the rectangular magnet 21 inside the inner side end face of the T-shaped sliding block 4 are fixed together by the magnetic attraction, and the T-shaped sliding block 4 is convenient to move and then is fixed.

The setting subject component comprises a digital display 14 and a PCB control board 22, the digital display 14 is arranged on the top of the front end face of the rectangular front cover 1, the digital display 14 is electrically connected with the corresponding electric connection end of the PCB control board 22 through a flat cable, and the opposite electric connection ends of the PCB control board 22 are electrically connected with a plus key 8, a minus key 10, a number multiplication key 11, a number division key 12, a digital key group 13 and a power switch 15 respectively;

by pressing the number key group 13 and coordinately pressing the plus key 8, the minus key 10, the multiply key 11 and the divide key 12, the mathematical calculation questions can be presented on the digital display 12, and the effect of showing the questions can be achieved.

The rectangular magnet 21 is arranged in the rectangular rear frame 7, and the frame opening surface of the rectangular rear frame 7 is regularly distributed with inserting block 701 groups; the cover opening surface of the rectangular front cover 1 is regularly distributed with slot 101 groups, and the slot 101 groups and the insertion block 701 groups are correspondingly inserted and fixed together; nine strip-shaped sliding holes 3 are formed in the rectangular concave surface 2, and the nine strip-shaped sliding holes 3 are arranged at the bottom of the rectangular concave surface at equal intervals; the side walls of the two sides in the strip-shaped sliding hole 3 are both provided with a guide sliding chute 301, and the guide sliding chutes 301 are mutually connected with the guide sliding blocks 16 in a sliding manner; the round flat cavity 18 is formed in the T-shaped sliding block 4, and the round flat cavity 18 is communicated with the front end face of the T-shaped sliding block 4 through the rectangular window 6; the two annular iron sheets 23 are in one group, and the two annular iron sheets 23 in the same group are respectively arranged on the circular walls at two sides in the same flat circular cavity 18 and can be mutually fixed with the annular magnet 19 in a magnetic attraction manner; the annular surface of the digital round block 5 is sprayed with 0-9 numbers, so that a required array can be formed; the T-shaped sliding blocks 4 are in a group of six, the six T-shaped sliding blocks 4 in the same group are slidably mounted in the same strip-shaped sliding hole 3, and the T-shaped sliding blocks 4 are in a group of six, so that the use of data on the same digit is facilitated; the PCB control board 22 is fixedly installed at the top inside the rectangular front cover 1, and the PCB control board 22 is electrically connected with the electrical connection end of the USB socket 9 through a wire.

When the application is used, the mathematical calculation questions can be presented on the digital display 12 by pressing the number key group 13 and coordinately pressing the plus key 8, the minus key 10, the multiply key 11 and the divide key 12, so that the effect of showing the questions is achieved;

when calculation is performed according to the digital display 12, the T-shaped slide blocks 4 in the strip-shaped slide holes 3 are moved upwards, and the T-shaped slide blocks 4 are distributed layer by layer up and down according to each step of addition, subtraction, multiplication and division operation, so that a calculation distribution diagram can be formed, students can know each step of algorithm more clearly, and comprehensiveness of knowledge points is improved;

The application has the advantages that:

1. the structure of the digital display screen is reasonable, and the mathematical calculation questions can be presented on the digital display 12 by pressing the digital key group 13 and coordinately pressing the plus key 8, the minus key 10, the multiply key 11 and the divide key 12, so that the effect of showing the questions can be achieved;

2. the structure is reasonable, the T-shaped sliding blocks 4 in the strip-shaped sliding holes 3 are moved upwards, and the T-shaped sliding blocks 4 are distributed layer by layer up and down according to each step of addition, subtraction, multiplication and division operation, so that a calculation distribution diagram can be formed, students can know each algorithm more clearly, and comprehensiveness of knowledge points is improved;

3. this application is rational in infrastructure, it exposes in 6 departments of rectangle window to show the figure that will correspond through stirring digital circle piece 5 according to the data that will calculate or according to the result data of calculating, the combination operation array of being convenient for, and stir digital circle piece 5 and inhale together fixedly through the annular magnet 19 of both sides and the annular iron sheet 23 magnetism that corresponds, inhale together fixedly with the inside bar iron plate 17 of T type slider 4 medial surface and the mutual magnetism of rectangular magnet 21 simultaneously, be convenient for fix after removing T type slider 4.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a primary school's mathematical computation teaching presentation device which characterized in that: the digital display device comprises a rectangular front cover (1), a sliding fixing component, a digital turning component and a question setting component, wherein the rectangular front cover (1) is fixedly arranged on a frame opening of a rectangular rear frame (7), and a rectangular concave surface (2) is arranged on the front end surface of the rectangular front cover (1);

the sliding fixing assembly comprises a strip-shaped sliding hole (3), a guide sliding block (16), a T-shaped sliding block (4), a strip-shaped iron block (17) and a rectangular magnet (21), the strip-shaped sliding hole (3) is connected with the T-shaped sliding block (4) in a sliding mode through the guide sliding block (16), the strip-shaped iron block (17) is installed on the end face of the inner side end of the T-shaped sliding block (4), and the strip-shaped iron block (17) and the rectangular magnet (21) are fixed together in a magnetic attraction mode;

the digital turning assembly comprises a digital round block (5), annular magnets (19), a rotating shaft (20) and annular iron sheets (23), the digital round block (5) is rotatably connected with the side walls of the two sides in the flat round cavity (18) through the rotating shaft (20), the annular surface part of the digital round block (5) exceeds the rectangular window (6), the annular magnets (19) are arranged in a group of two, the two annular magnets (19) are arranged on the round walls of the two sides of the digital round block (5), and the annular magnets (19) and the annular iron sheets (23) are fixed together in a magnetic attraction manner;

set up topic subassembly and include digital display (14) and PCB control panel (22), terminal surface top before rectangle protecgulum (1) is installed in digital display (14), and digital display (14) correspond electricity through winding displacement and PCB control panel (22) and connect the end electric connection each other, PCB control panel (22) are gone up to connect the end electric connection respectively with plus sign button (8), subtract sign button (10), take advantage of number button (11), divide number button (12), number button group (13) and switch (15).

2. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the rectangular magnet (21) is installed in the rectangular rear frame (7), and the frame opening surfaces of the rectangular rear frame (7) are regularly distributed with insertion block (701) groups.

3. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the rectangular front cover (1) is provided with slots (101) in regular distribution on the cover opening surface, and the slots (101) and the insertion blocks (701) are correspondingly inserted and fixed together.

4. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the strip-shaped sliding holes (3) are nine, and the strip-shaped sliding holes (3) are equidistantly arranged at the bottom of the rectangular concave surface (2).

5. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the bar-shaped sliding hole (3) is internally provided with guide sliding grooves (301) on the side walls of the two sides, and the guide sliding grooves (301) are mutually connected with the guide sliding blocks (16) in a sliding mode.

6. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the round flat cavity (18) is arranged inside the T-shaped sliding block (4), and the round flat cavity (18) is communicated with the front end face of the T-shaped sliding block (4) through the rectangular window (6).

7. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the two annular iron sheets (23) are in one group, and the two annular iron sheets (23) in the same group are respectively arranged on the circular walls at the two sides in the same flat circular cavity (18).

8. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the annular surface of the digital round block (5) is sprayed with 0-9 numbers.

9. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the T-shaped sliding blocks (4) are in a group of six, and the T-shaped sliding blocks (4) in the same group are slidably mounted in the same strip-shaped sliding hole (3).

10. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the PCB control board (22) is fixedly installed at the top in the rectangular front cover (1), and the PCB control board (22) is electrically connected with the electric connection end of the USB socket (9) through a lead.