CN220465102U - Teaching demonstration board - Google Patents

Abstract

The utility model discloses a teaching demonstration board, which belongs to the technical field of teaching equipment and comprises a demonstration board, wherein a T-shaped groove is formed in the top end of the demonstration board, a displacement component is arranged in the T-shaped groove, the bottom end of the demonstration board is fixedly connected with a storage box, a fixing component is arranged at the outer end of the displacement component, a drawing board is arranged at the outer end of the fixing component, the displacement component comprises a T-shaped block, the T-shaped block is in sliding connection with the inner wall of the T-shaped groove, one end of the T-shaped block is fixedly connected with a movable plate, one end of the movable plate, which is far away from the T-shaped block, is rotationally connected with a pulley, the displacement component is hung at the outer end of the demonstration board, the drawing board can move in the horizontal direction through sliding of the T-shaped block, the fixing component can move in the vertical direction, meanwhile, a chalk is arranged in a chalk sleeve, the round drawing board can be conveniently drawn on the demonstration board through rotation, and the drawing efficiency of a middle-position teacher in teaching class is improved.

Description

Teaching demonstration board

Technical field

The utility model relates to the technical field of teaching equipment, and more specifically, to a teaching demonstration board.

Background technique

The teaching demonstration board is a tool that facilitates teaching. It is used to display mathematical concepts, equations, graphics and calculation processes in teaching, to facilitate the explanation and demonstration of mathematical problems in the classroom, and to improve the teaching efficiency of veteran secondary vocational teachers.

China Patent Authorization Announcement Number: CN215096613U provides a secondary vocational teaching demonstration board. This solution uses two electric reels to synchronously rotate in the same direction. The whiteboard film will be rolled up to the electric reel on the left, and the protective film will cover the board body to avoid When the board is not in use, it collides with other objects, which can easily cause damage to the board and the whiteboard film on the board.

Secondary vocational mathematics teachers often need to draw circles or arcs when teaching geometric figures or function figures. However, this solution cannot assist teachers in drawing circles. Teachers need to hold a compass to draw, which is time-consuming and labor-intensive, and the compass is easy to slide. The drawn circle will not be standard and beautiful enough, which is not conducive to improving teaching efficiency. Therefore, a teaching demonstration board is proposed to address the above problems.

Utility model content

1. Technical problems to be solved

In view of the problems existing in the prior art, the purpose of this utility model is to provide a teaching demonstration board. The displacement component in this solution is hung on the outer end of the demonstration board, and the drawing board can be moved horizontally by sliding the T-shaped block. The fixed component allows the drawing board to move in the vertical direction. At the same time, the chalk sleeve is equipped with chalk. By rotating the circular board, a circle can be easily drawn on the demonstration board, which improves the mathematics performance of secondary vocational teachers. Drawing efficiency during lectures.

2.Technical solutions

In order to solve the above problems, the present utility model adopts the following technical solutions.

Teaching demonstration board, including a demonstration board. A T-shaped slot is provided at the top of the demonstration board. A displacement component is installed inside the T-shaped slot. A storage box is fixedly connected to the bottom end of the demonstration board. The displacement component is installed at the outer end. There is a fixed component, and a drawing board is installed on the outer end of the fixed component.

Further, the displacement assembly includes a T-shaped block, which is slidingly connected to the inner wall of the T-shaped groove. One end of the T-shaped block is fixedly connected to a movable plate, and the end of the movable plate away from the T-shaped block is rotatably connected to a pulley. .

Further, the fixed component includes a button and a shell. The shell is provided with a through hole. The inner wall of the through hole is slidingly connected to the outer end of the movable plate. The outer end of the button is fixedly connected to a sliding rod near the center.

Further, the sliding rod penetrates the side wall of the housing and abuts the movable plate. A pair of grooves are provided at the outer end of the sliding rod. A first spring is fixedly connected to the inner wall of the groove. One end of the first spring is fixedly connected. There is a slider, the slider is slidingly connected with the inner wall of the groove, and the outer end of the slider is in contact with the inner wall of the housing.

Further, the drawing board includes a circular plate. The outer end of the circular plate is rotatably connected to a connecting block near the center. The connecting block is fixedly connected to the outer end of the housing at one end away from the circular plate. The outer ends of the circular plate are respectively provided with limited openings. Bit slots and semi-circular slots.

Further, the drawing board also includes a chalk sleeve and a limit block. A plurality of second springs are fixedly connected to the inner wall of the limit groove. The top ends of the plurality of second springs are fixedly connected to the limit block. The limit block The outer end of the bit block is in contact with the chalk sleeve.

3. Beneficial effects

Compared with the existing technology, the advantages of this utility model are:

The displacement component in this solution is hung on the outer end of the demonstration board. By sliding the T-shaped block, the drawing board can move horizontally, and its fixed component can move the drawing board vertically. At the same time, the chalk Chalk is installed in the set. By rotating the circular plate, you can easily draw a circle on the demonstration board, which improves the drawing efficiency of secondary vocational teachers when teaching mathematics.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

Figure 2 is a schematic side cross-sectional structural diagram of the utility model;

Figure 3 is a schematic structural diagram of position A in Figure 2 of the present utility model;

Figure 4 is a schematic structural diagram of the drawing board of the present utility model;

Figure 5 is a schematic structural diagram of position B in Figure 4 of the present invention.

Description of numbers in the figure:

1. Demonstration board; 2. Storage box; 3. Displacement component; 301. T-shaped block; 302. Movable plate; 303. Pulley; 4. Fixed component; 401. Button; 402. Slider; 403. First spring ; 404. Slider; 405. Shell; 5. Drawing board; 501. Circular plate; 502. Chalk sleeve; 503. Connecting block; 504. Semicircular groove; 505. Limiting block; 506. Second spring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. For example, based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top/bottom", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. limit. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise expressly stipulated and limited, the terms "installation", "disposed with", "set/connected", "connected", etc. should be understood in a broad sense, for example "Connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be two components Internal connectivity. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example:

Please refer to Figure 1-2. The teaching demonstration board includes demonstration board 1. There is a T-shaped slot on the top of demonstration board 1. A displacement component 3 is installed inside the T-shaped slot. A storage box 2 is fixedly connected to the bottom of demonstration board 1. The displacement A fixed component 4 is installed at the outer end of component 3, and a drawing board 5 is installed at the outer end of fixed component 4.

The T-shaped slot opened on the top of the demonstration board 1 in this solution allows the displacement component 3 to move on it through the T-shaped block 301, so that the movable board 302 can drive the drawing board 5 to move horizontally, and then through its shell The through hole opened on 405 allows the housing 405 to drive the drawing tablet 5 to move in the vertical direction, making it convenient to use the drawing tablet 5 to draw on the demonstration board 1. The sliding rod 402 generates friction through contact with the movable plate 302. The drawing tablet 5 can be fixed by applying force to prevent the drawing tablet 5 from sliding down due to gravity.

The chalk cover 502 contains chalk, and the chalk cover 502 is installed in the limit groove of the circular plate 501. By rotating the circular plate 501, the chalk cover 502 can be driven to draw a circle on the demonstration board 1, around the limit groove. It is engraved with a scale, and the position of the chalk sleeve 502 in the limit groove can be adjusted as needed, thereby changing the radius of the circle and improving the teacher's drawing efficiency. Teaching items such as chalk and blackboard erasers can be placed inside the storage box 2, which is convenient Used by secondary vocational teachers when teaching.

Please refer to Figure 1-2. The displacement assembly 3 includes a T-shaped block 301. The T-shaped block 301 is slidingly connected to the inner wall of the T-shaped slot. One end of the T-shaped block 301 is fixedly connected to a movable plate 302. The movable plate 302 rotates away from the T-shaped block 301. A pulley 303 is connected.

The T-shaped block 301 in this solution can make the displacement component 3 move in the horizontal direction by sliding with the T-shaped slot on the top of the demonstration board 1. The top of the movable plate 302 is arc-shaped, allowing the displacement component 3 to be hung externally on the demonstration board. 1 outer end, which does not occupy the writing area of the demonstration board 1. At the same time, the pulley 303 at the bottom of the movable board 302 can support the bottom of the movable board 302 so that it will not tilt. At the same time, the pulley 303 will also rotate without affecting the displacement. Movement of component 3 improves stability.

Please refer to Figure 2-3. The fixed component 4 includes a button 401 and a shell 405. The shell 405 is provided with a through hole. The inner wall of the through hole is slidingly connected to the outer end of the movable plate 302. The outer end of the button 401 is fixedly connected with a sliding hole near the center. Rod 402.

The sliding rod 402 penetrates the side wall of the housing 405 and abuts the movable plate 302. A pair of grooves are provided at the outer end of the sliding rod 402. A first spring 403 is fixedly connected to the inner wall of the groove, and a slider 404 is fixedly connected to one end of the first spring 403. The slider 404 is slidingly connected to the inner wall of the groove, and the outer end of the slider 404 is in contact with the inner wall of the housing 405 .

The front end of the sliding rod 402 in this solution is made of rubber material, which can increase friction. When the button 401 is pressed, the sliding rod 402 will move toward the movable plate 302, so that the front end contacts the movable plate 302, and its movement is restricted by friction. A slot matching the slider 404 is provided inside the housing 405. When the slider 402 contacts the movable plate 302, the slider 404 will close to the movable plate on the housing 405 through the force of the first spring 403. The slot at 302 is engaged to fix it. When the button 401 is pulled out, the slider 404 is engaged with another slot on the housing 405 so that the housing 405 can move up and down.

Please refer to Figure 4-5. The drawing board 5 includes a circular plate 501. The outer end of the circular plate 501 is rotatably connected to a connecting block 503 near the center. The connecting block 503 is fixedly connected to the outer end of the housing 405 at one end away from the circular plate 501. The circular plate 501 Limiting grooves and semicircular grooves 504 are respectively provided at the outer end.

The drawing board 5 also includes a chalk sleeve 502 and a limit block 505. A plurality of second springs 506 are fixedly connected to the inner wall of the limit slot. The tops of the plurality of second springs 506 are fixedly connected to the limit block 505. The outer end of the limit block 505 It is in contact with the chalk cover 502.

The circular plate 501 in this solution is fixed on the outer end of the housing 405 through the connecting block 503. A chalk sleeve 502 is installed inside the limiting groove opened on the circular plate 501. When the circular plate 501 is rotated, the circular plate 501 can Drive the chalk sleeve 502 to make a circular motion, and the chalk in the chalk sleeve 502 contacts the demonstration board 1, and a circle can be drawn. There are numerical values engraved on the outside of the limit groove. Adjust the position of the chalk sleeve 502 on the limit groove. The radius of the circle can be changed, and its limit block 505 can fix the chalk sleeve 502 in the limit groove through the force of the second spring 506 to prevent it from falling. At the same time, an angle value is engraved on the outside of its semicircular groove 504, which can play a role. For the purpose of measuring angles, it is convenient for secondary vocational teachers to use when teaching mathematics.

Working principle: When using this device, you need to put chalk into the chalk sleeve 502 first, so that the chalk is in contact with the demonstration board 1. Then, as the T-shaped block 301 slides through the T-shaped groove on the top of the demonstration board 1, it is pushed. It can move in the horizontal direction, and then pull the button 401 outward to disengage the sliding rod 402 from the movable plate 302, and then move it up and down. When it is adjusted to the appropriate position, when the button 401 is pressed, it will Make the slide bar 402 contact the movable plate 302, and its slide block 404 will engage with the slot to fix it and limit its movement. Then, you only need to rotate the circular plate 501 to drive the chalk on the chalk sleeve 502 to move on the demonstration board 1 Draw a figure on the circle and adjust the position of the chalk sleeve 502 on the limit groove to change the radius of the circle. At the same time, the angle value is engraved on the outside of the semicircular groove 504 to facilitate angle measurement and improve the teaching efficiency of secondary vocational teachers.

The above are only preferred embodiments of the present invention; however, the protection scope of the present invention is not limited thereto. Any person familiar with the technical field who is familiar with the technical field shall make equivalent substitutions or changes based on the technical solutions and improvement concepts of the present utility model within the technical scope disclosed by the present utility model, and they shall be covered by the protection scope of the present utility model.

Claims (6)

1. Teaching demonstration board, including demonstration board (1), its characterized in that: t-shaped grooves are formed in the top end of the demonstration board (1), displacement assemblies (3) are installed in the T-shaped grooves, storage boxes (2) are fixedly connected to the bottom end of the demonstration board (1), fixing assemblies (4) are installed at the outer ends of the displacement assemblies (3), and drawing boards (5) are installed at the outer ends of the fixing assemblies (4).

2. The teaching demonstration board according to claim 1, wherein: the displacement assembly (3) comprises a T-shaped block (301), the T-shaped block (301) is slidably connected with the inner wall of the T-shaped groove, one end of the T-shaped block (301) is fixedly connected with a movable plate (302), and one end, far away from the T-shaped block (301), of the movable plate (302) is rotationally connected with a pulley (303).

3. The teaching demonstration board according to claim 1, wherein: the fixed component (4) comprises a button (401) and a shell (405), a through hole is formed in the shell (405), the inner wall of the through hole is slidably connected with the outer end of the movable plate (302), and a sliding rod (402) is fixedly connected to the outer end of the button (401) close to the center.

4. A teaching demonstration board according to claim 3, characterized in that: the sliding rod (402) penetrates through the side wall of the shell (405) to be abutted against the movable plate (302), a pair of grooves are formed in the outer end of the sliding rod (402), a first spring (403) is fixedly connected to the inner wall of each groove, a sliding block (404) is fixedly connected to one end of each first spring (403), the sliding blocks (404) are slidably connected with the inner walls of the grooves, and the outer ends of the sliding blocks (404) are abutted against the inner walls of the shell (405).

5. The teaching demonstration board according to claim 1, wherein: the drawing board (5) comprises a circular plate (501), a connecting block (503) is rotationally connected to the outer end of the circular plate (501) close to the center, one end, away from the circular plate (501), of the connecting block (503) is fixedly connected with the outer end of the shell (405), and a limit groove and a semicircular groove (504) are respectively formed in the outer end of the circular plate (501).

6. The teaching demonstration board according to claim 5, wherein: the drawing board (5) further comprises a chalk sleeve (502) and a limiting block (505), a plurality of second springs (506) are fixedly connected to the inner wall of the limiting groove, the top ends of the second springs (506) are fixedly connected with the limiting block (505), and the outer end of the limiting block (505) is abutted to the chalk sleeve (502).