CN215730401U - Primary school's mathematical computation teaching presentation device - Google Patents
Primary school's mathematical computation teaching presentation device Download PDFInfo
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- CN215730401U CN215730401U CN202122346635.5U CN202122346635U CN215730401U CN 215730401 U CN215730401 U CN 215730401U CN 202122346635 U CN202122346635 U CN 202122346635U CN 215730401 U CN215730401 U CN 215730401U
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Abstract
The utility model discloses a primary school mathematical computation teaching demonstration device which comprises a demonstration box, wherein nine rectangular openings are formed in the front of the demonstration box, the inner walls of the nine rectangular openings are connected with transparent display frames in a sliding mode, transparent digital plates are embedded in the front of the nine transparent display frames, the numbers of the surfaces of the nine transparent digital plates are 1-9 from left to right in sequence, a cylindrical rod is fixedly installed on the back of each transparent display frame, a positioning sleeve corresponding to the cylindrical rod is fixedly installed on the inner wall of the demonstration box, and two symmetrical concave grooves are formed in the surface of the cylindrical rod. This primary school's mathematical computation teaching presentation device, when using, can write out earlier through the clipboard and add and subtract after the theme, press the elastic rubber piece to make the reference column break away from the constant head tank, transparent number board and cylinder pole moved right under expanding spring's effect this moment, thereby made the answer of theme stretch out the demonstration case, the effectual study effect that has increased when having improved children's study interest.
Description
Technical Field
The utility model relates to the technical field of teaching devices, in particular to a primary school mathematical computation teaching demonstration device.
Background
Primary school mathematics teaches children's knowledge about numbers, four arithmetic operations, graphic and length calculation formulas and unit conversion of a series of knowledge through teaching materials, and lays a good mathematical foundation for junior high school and daily life calculation.
In the teaching process of primary school mathematics, addition and subtraction teaching of children is an important part for learning primary school mathematics, but most of the traditional teaching modes are writing demonstration teaching on a blackboard, and the teaching mode cannot effectively attract the attention of children, so that the teaching effect is poor.
Therefore, the primary school mathematical calculation teaching demonstration device is provided.
Disclosure of Invention
The utility model aims to provide a primary school mathematical computation teaching demonstration device to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a primary school's mathematical computation teaching presentation device, including the demonstration case, nine rectangle openings have been seted up in the front of demonstration case, and the equal sliding connection of nine rectangle open-ended inner walls has transparent display frame, and the front of nine transparent display frames all inlays and is equipped with transparent number board, and the figure on nine transparent number board surfaces is 1-9 from a left side to the right side in proper order, the back fixed mounting of transparent display frame has the cylinder pole, and the inner wall fixed mounting of demonstration case has the position sleeve corresponding with the cylinder pole, the concave groove of two symmetries is seted up on the surface of cylinder pole, and the equal sliding connection of inner wall in two concave grooves has the reference column, the constant head tank with reference column looks adaptation is seted up to the inner wall of position sleeve, the rectangular channel has been seted up in the front of demonstration case, and the inner wall of rectangular channel inlays and is equipped with the clipboard.
Preferably, the surface of the cylindrical rod is fixedly provided with a fixed disc, the side surface of the fixed disc is fixedly provided with an extension spring, and the other end of the extension spring is fixedly connected with the end part of the positioning sleeve.
Preferably, the back of the demonstration box is provided with a circular opening matched with the cylindrical rod, and the inner wall of the circular opening is fixedly provided with an elastic rubber block used for pressing the cylindrical rod.
Preferably, the bottom light is disposed on the inner wall of the transparent display frame, the contact switch is disposed on the side surface of the fixed disk, and the contact switch is electrically connected to the bottom light.
Preferably, the inner wall of the concave groove is provided with a sliding chute for the positioning column to slide, the end part of the positioning column is provided with a resisting spring, and the other end of the resisting spring is fixedly connected with the inner wall of the concave groove.
Preferably, the front of demonstration case is provided with accomodates the drawer, and the interior roof of rectangular channel is provided with a plurality of light filling lamp.
Advantageous effects
The utility model provides a primary school mathematical computation teaching demonstration device, which has the following beneficial effects:
1. this teaching presentation device is calculated to primary school's mathematics, through setting up transparent display frame, transparent number board, the cylinder pole, position sleeve, the reference column, the clipboard, expanding spring and support tight spring, make the device when using, can write out earlier through the clipboard and add the subtraction topic after, press the elastic rubber piece, thereby make the reference column break away from the constant head tank, transparent number board and cylinder pole remove under expanding spring's effect this moment, thereby the demonstration case is stretched out to the answer that makes the topic, the effectual study interest of children that has improved has increased the learning effect in the time.
2. This teaching presentation device is calculated to primary school's mathematics through setting up end light, fixed disk and contact switch, moves the in-process when the cylinder pole right, and the contact switch on the fixed disk contacts with the inner wall of demonstration case to the automatic control end light is luminous, makes that children can be clear see the digital answer on the transparent number board, and luminous figure can further attract children's attention simultaneously.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side sectional view of the demonstration box of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
fig. 4 is a schematic perspective view of a cylindrical rod according to the present invention.
In the figure: the demonstration box comprises a demonstration box 1, a transparent display frame 2, a transparent digital plate 3, a cylindrical rod 4, a positioning sleeve 5, a positioning column 6, a writing board 7, a fixing disk 8, a telescopic spring 9, an elastic rubber block 10, an under light lamp 11, a contact switch 12, a abutting spring 13, a storage drawer 14 and a light supplement lamp 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a primary school's mathematical computation presentation device, including demonstration case 1, nine rectangle openings have been seted up in demonstration case 1's front, and nine equal sliding connection in rectangle open-ended inner wall has transparent display frame 2, and nine front of transparent display frame 2 all inlays and be equipped with transparent number board 3, and the figure on 3 surfaces of nine transparent number boards is 1-9 from a left side to the right side in proper order, the back fixed mounting of transparent display frame 2 has cylinder pole 4, the circular opening with 4 looks adaptations of cylinder pole is seted up at the back of demonstration case 1, and circular open-ended inner wall fixed mounting has the elastic rubber piece 10 that is used for pressing cylinder pole 4.
And the inner wall of the demonstration box 1 is fixedly provided with a positioning sleeve 5 corresponding to the cylindrical rod 4, the surface of the cylindrical rod 4 is fixedly provided with a fixed disc 8, the side surface of the fixed disc 8 is fixedly provided with an expansion spring 9, and the other end of the expansion spring 9 is fixedly connected with the end part of the positioning sleeve 5.
The inner wall of the transparent display frame 2 is provided with a bottom light 11, the side surface of the fixed disk 8 is provided with a contact switch 12, and the contact switch 12 is electrically connected with the bottom light 11.
Two symmetrical concave grooves are formed in the surface of the cylindrical rod 4, the inner walls of the two concave grooves are connected with the positioning column 6 in a sliding mode, a sliding groove for the positioning column 6 to slide is formed in the inner wall of each concave groove, the end portion of each positioning column 6 is provided with a supporting spring 13, and the other end of each supporting spring 13 is fixedly connected with the inner wall of each concave groove.
The constant head tank with 6 looks adaptations of reference column is seted up to position sleeve 5's inner wall, through setting up transparent display frame 2, transparent number board 3, cylinder pole 4, position sleeve 5, reference column 6, clipboard 7, expanding spring 9 and support tight spring 13, make the device when using, can write out earlier through clipboard 7 and add and subtract after the theme, press elastic rubber piece 10, thereby make the reference column take off 6 from the constant head tank, transparent number board 3 and cylinder pole 4 moved right under expanding spring 9's effect this moment, thereby make the answer of theme stretch out demonstration case 1, the effectual study effect that has increased when improving child's interest in learning.
The front of the demonstration box 1 is provided with a rectangular groove, and the inner wall of the rectangular groove is embedded with a writing board 7.
The front of demonstration case 1 is provided with accomodates drawer 14, and the interior roof of rectangular channel is provided with a plurality of light filling lamp 15.
Through setting up bottom light 11, fixed disk 8 and contact switch 12, move the in-process when cylinder pole 4 right, contact switch 12 on the fixed disk 8 and the inner wall contact of demonstration case 1 to automatic control bottom light 11 is luminous, makes that children can be clear see the digital answer on the transparent number board 3, and luminous figure can further attract children's attention simultaneously.
The working principle is as follows: the device is when using, can write out earlier through clipboard 7 and add and subtract after the theme, press elastic rubber block 10, thereby make the reference column take off 6 from the constant head tank, transparent number board 3 and cylinder pole 4 moved right under expanding spring 9's effect this moment, thereby make the answer of theme stretch out demonstration case 1, the effectual study interest of children that has improved has increased the study effect in the time, and when the in-process that cylinder pole 4 moved right, contact switch 12 on the fixed disk 8 and the inner wall contact of demonstration case 1, thereby automatic control bottom light 11 is luminous, make the digital answer on seeing transparent number board 3 that children can be clear, luminous figure can further attract children's attention simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a primary school's mathematical computation teaching presentation device, includes demonstration case (1), its characterized in that: nine rectangular openings are arranged on the front surface of the demonstration box (1), the inner walls of the nine rectangular openings are connected with transparent display frames (2) in a sliding manner, and the front surfaces of the nine transparent display frames (2) are embedded with transparent digital plates (3), the numbers on the surfaces of the nine transparent digital plates (3) are 1-9 from left to right, the back of the transparent display frame (2) is fixedly provided with a cylindrical rod (4), and the inner wall of the demonstration box (1) is fixedly provided with a positioning sleeve (5) corresponding to the cylindrical rod (4), the surface of the cylindrical rod (4) is provided with two symmetrical concave grooves, and the inner walls of the two concave grooves are connected with positioning columns (6) in a sliding manner, the inner wall of the positioning sleeve (5) is provided with positioning grooves matched with the positioning columns (6), the front side of the demonstration box (1) is provided with a rectangular groove, and the inner wall of the rectangular groove is embedded with a writing board (7).
2. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the surface of the cylindrical rod (4) is fixedly provided with a fixed disc (8), the side surface of the fixed disc (8) is fixedly provided with an extension spring (9), and the other end of the extension spring (9) is fixedly connected with the end part of the positioning sleeve (5).
3. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the back of the demonstration box (1) is provided with a circular opening matched with the cylindrical rod (4), and the inner wall of the circular opening is fixedly provided with an elastic rubber block (10) used for pressing the cylindrical rod (4).
4. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the inner wall of the transparent display frame (2) is provided with a bottom light lamp (11), the side surface of the fixed disc (8) is provided with a contact switch (12), and the contact switch (12) is electrically connected with the bottom light lamp (11).
5. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the inner wall of the concave groove is provided with a sliding chute for the positioning column (6) to slide, the end part of the positioning column (6) is provided with a propping spring (13), and the other end of the propping spring (13) is fixedly connected with the inner wall of the concave groove.
6. An elementary school mathematical calculation teaching demonstration device according to claim 1, characterised in that: the front of demonstration case (1) is provided with accomodates drawer (14), and the interior roof of rectangular channel is provided with a plurality of light filling lamp (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346635.5U CN215730401U (en) | 2021-09-27 | 2021-09-27 | Primary school's mathematical computation teaching presentation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122346635.5U CN215730401U (en) | 2021-09-27 | 2021-09-27 | Primary school's mathematical computation teaching presentation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215730401U true CN215730401U (en) | 2022-02-01 |
Family
ID=80025293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122346635.5U Expired - Fee Related CN215730401U (en) | 2021-09-27 | 2021-09-27 | Primary school's mathematical computation teaching presentation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215730401U (en) |
-
2021
- 2021-09-27 CN CN202122346635.5U patent/CN215730401U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220201 |