CN211427594U - A portable math teaching board - Google Patents

Abstract

The utility model relates to a portable mathematics teaching board, which has the advantages that the prior teaching board has a single fixed structure, a larger teaching board is inconvenient to carry back and forth, and the function is single, and the following proposal is provided, comprising a first ruler board, a chalk hole, a limiting board, a T-shaped board, a second ruler board and a third ruler board; first chi board is the isosceles right triangle structure, be provided with the slotted hole respectively with the upper right end in the middle of the first chi board upper end, the limiting plate is installed to first chi board right side lower extreme, fixed mounting has the U type in the middle of the first chi board upper surface to handle, first chi board lower surface left side lower extreme fixed mounting has the T template. The utility model discloses a be provided with slotted hole and limiting plate respectively with first chi board, second chi board, third chi board and fourth chi board, through the downthehole and mutual demountable installation together of limiting plate insertion groove between each group's chi board, can dismantle when not using and place in placing the box, reduce the whole area of teaching board, portable saves.

Description

A portable math teaching board

technical field

The utility model relates to the technical field of educational equipment, in particular to a portable mathematics teaching board.

Background technique

In the teaching process of mathematics teachers in primary and secondary schools, a teaching board needs to be used for drawing pictures in class. According to the content of the class, circles of various diameters and triangles with special angles need to be drawn on the blackboard. Drawing vivid graphics is beneficial to Students can understand the teaching content more quickly. Now, the teaching board has a single fixed structure. The larger teaching board is not easy to carry back and forth, and it can only help teachers to draw simple 90°, 30° and 60° angles during use. The function is single, and the ruler board and the blackboard need to be directly contacted and rubbed during the drawing process, which is easy to damage the ruler board and reduce the service life for a long time. Therefore, a portable math teaching board is needed to solve the above problems.

Existing Patent (Announcement No.: CN206075629U) A portable mathematics teaching board is composed of a thin box body, a box cover, a rectangular slot, and a square piece with a cloth handle; The size of the slot can accommodate 4 square pieces, and the thin box body is placed with a total of 6 square pieces, and the square pieces are glued with cloth strip handles for easy removal and sliding.

In the process of realizing the utility model, it is found that at least the following problems have not been solved in the prior art: 1. The existing teaching board has a fixed and large structure, which is inconvenient to carry and store, resulting in inconvenience in use; 2. Now Some teaching boards can only make simple graphics with angles of 90°, 30° and 60°, and use too few functions, and in the process of drawing, it is necessary to directly contact and rub the teaching board with the blackboard, which may easily cause damage to the teaching board. The present application facilitates the detachable connection between the teaching boards through the slot holes and the limiting board.

Utility model content

The portable math teaching board proposed by the utility model solves the problems of inconvenience to carry and few functions.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A portable mathematics teaching board, comprising a first ruler board, a chalk hole, a limit board, a T-shaped board, a second ruler board and a third ruler board;

The first ruler board is an isosceles right-angled triangle structure, the middle and upper right ends of the first ruler board are respectively provided with slot holes, a limit plate is installed at the lower right end of the first ruler board, and the first ruler board is A U-shaped handle is fixedly installed in the middle of the surface, a T-shaped plate is fixedly installed at the lower left end of the lower surface of the first ruler, and the upper end of the T-shaped plate extends through the first ruler to the upper end, and the first ruler is installed at the upper end There is a third ruler board, an oval hole is opened in the middle of the third ruler board, a limit board is fixedly installed in the middle of the bottom of the third ruler board, and the limit board on the third ruler board is inserted into the top of the first ruler board. In the slot hole, the three groups of angles of the third ruler are 30°, 60° and 90° respectively;

The right end of the first ruler board is installed with a second ruler board, the second ruler board is an isosceles right triangle structure, the upper left end of the second ruler board is fixedly installed with a limiting board, and the lower left end of the second ruler board is inside. A slot hole is provided, the slot hole and the limit plate on the left end of the second ruler plate are respectively closely fitted with the limit plate and the slot hole at the lower right end of the first ruler plate, and a slot hole is arranged in the middle of the right end of the second ruler plate. , the right end of the second foot plate is installed with a fourth foot plate, the fourth foot plate is an isosceles right triangle structure, a circular hole is opened in the middle of the fourth foot plate, and the middle of the left end of the fourth foot plate is installed with limited The position plate, the limit plate in the middle of the fourth ruler plate is inserted into the slot hole in the middle of the right end of the second ruler plate.

Preferably, a rubber layer is sleeved on the outer periphery of the bottom of the T-shaped plate.

Preferably, the structural shape of the slot hole is equal to the structural shape of the limiting plate.

Preferably, scale lines are arranged on the sides of the first ruler, the second ruler, the third ruler and the fourth ruler.

Preferably, chalk holes are respectively provided on the first ruler board, the second ruler board, the third ruler board and the fourth ruler board.

Preferably, supporting columns are respectively installed on the lower surfaces of the second, third and fourth leg plates, and the lower surfaces of the supporting columns and the bottom of the T-shaped plate are located on the same horizontal plane.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The present utility model is provided with a slot hole and a limit plate respectively by setting the first ruler board, the second ruler board, the third ruler board and the fourth ruler board, and inserting the slot hole through the limit board between each group of ruler boards. It can be disassembled and installed together inside each other. When not in use, it can be disassembled and placed in the storage box, which reduces the overall area of the teaching board and is easy to carry and store. When in use, four sets of ruler boards can be connected to each other. The third ruler board and the fourth ruler board are respectively provided with an oval hole and a round hole, so that the teaching teacher can quickly draw oval, circular and triangular shapes on the blackboard, which improves the convenience of use.

2. The utility model is provided with a T-shaped board at the bottom of the first ruler board, and each set of ruler boards is provided with a chalk hole, which is convenient for inserting the chalk into the chalk hole, and then rotates and draws a circle around the T-shaped board, which improves teaching and learning. The teacher quickly draws circles of different diameters, and connects the fourth ruler board with the third ruler board in reverse to quickly draw a parallelogram. A support column is installed at the bottom of each set of ruler boards to prevent each set of ruler boards from being mixed with each other. The blackboard is directly rubbed, which improves the service life of the teaching board.

Description of drawings

Fig. 1 is the overall structure schematic diagram of a kind of portable mathematics teaching board proposed by the utility model;

2 is a schematic diagram of the overall structure of the reassembly of a portable mathematics teaching board proposed by the utility model;

3 is a schematic diagram of the overall structure of a T-shaped board in a portable mathematics teaching board proposed by the present invention.

In the picture: 1. The first ruler; 2. The slot; 3. The chalk hole; 4. The U-shaped handle; 5. The limit plate; 6. The T-shaped plate; 7. The rubber layer; 8. The second ruler; 9. Third ruler plate; 10. Oval hole; 11. Tick mark; 12. Fourth ruler plate; 13. Round hole; 14. Support column.

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 a part of the embodiments of the present utility model, rather than all the implementations. example.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "arrangement" should be understood in a broad sense, for example, it may be fixedly connected, arranged, or It is a detachable connection and setting, or an integral connection and setting; the model of the electrical appliance provided in this utility model is for reference only. For those of ordinary skill in the art, different models of electrical appliances with the same function can be replaced according to actual use conditions, and for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances.

Referring to Fig. 1-3, a kind of portable mathematics teaching board, comprises the first rule board 1, the chalk hole 3, the limit board 5, the T-shaped board 6, the second rule board 8 and the third rule board 9;

The first ruler board 1 is an isosceles right-angled triangle structure, the middle of the upper end of the first ruler board 1 and the upper right end are respectively provided with a slot hole 2, the lower right end of the first ruler board 1 is installed with a limit plate 5, and the A U-shaped handle 4 is fixedly installed in the middle of the upper surface of the first ruler plate 1, and a T-shaped plate 6 is fixedly installed at the lower left end of the lower surface of the first ruler plate 1, and the upper end of the T-shaped plate 6 extends through the first ruler plate 1. To the upper end, the upper end of the T-shaped plate 6 extends through the first foot plate 1 to the upper end, the upper end of the first foot plate 1 is installed with a third foot plate 9, and an oval hole 10 is opened in the middle of the third foot plate 9. , the limit plate 5 is fixedly installed in the middle of the bottom of the third ruler board 9, the limit board 5 on the third ruler board 9 is inserted into the slot 2 inside the top of the first ruler board 1, and the third ruler board The three groups of angles of 9 are 30°, 60° and 90° respectively;

The right end of the first ruler board 1 is installed with a second ruler board 8, the second ruler board 8 is an isosceles right-angled triangle structure, the upper left end of the second ruler board 8 is fixedly installed with a limit plate 5, and the second ruler board 8 is installed. The left lower end of the ruler plate 8 is provided with a slot hole 2, and the slot hole 2 and the limit plate 5 at the left end of the second ruler plate 8 are respectively closely fitted with the limit plate 5 and the slot hole 2 at the lower right end of the first ruler plate 1. , the middle of the right end of the second ruler plate 8 is provided with a slot 2, the right end of the second ruler plate 8 is installed with a fourth ruler plate 12, the fourth ruler plate 12 is an isosceles right triangle structure, the fourth ruler A circular hole 13 is formed in the middle of the ruler plate 12 , a limit plate 5 is installed in the middle of the left end of the fourth ruler plate 12 , and the limit plate 5 in the middle of the fourth ruler plate 12 is inserted into the slot hole 2 in the middle of the right end of the second ruler plate 8 Internal shape.

In this embodiment, as shown in FIGS. 1 and 2 , the first ruler board 1 , the second ruler board 8 , the third ruler board 9 and the fourth ruler board 12 are respectively detachable and installed together, which is convenient for assembly and use, It is also easy to disassemble, save and carry. The third ruler board 9 and the fourth ruler board 12 are respectively provided with an oval hole 10 and a circular hole 13, which is convenient for teachers to quickly draw oval and circular shapes on the blackboard. A T-shaped plate 6 is installed at the bottom of the board 1, and a chalk hole 3 is opened on each set of ruler plates, so that the chalk can be inserted into the chalk hole 3, and then rotated around the T-shaped plate 6 to draw a circle.

Wherein, a layer of rubber layer 7 is sleeved on the outer periphery of the bottom of the T-shaped plate 6 .

Wherein, the structural shape of the slot hole 2 is equal to the structural shape of the limiting plate 5 , so that the limiting plate 5 is inserted into the slot hole 2 to be tightly fitted.

Wherein, scale lines 11 are provided on the sides of the first ruler board 1 , the second ruler board 8 , the third ruler board 9 and the fourth ruler board 12 .

Wherein, the first ruler board 1 , the second ruler board 8 , the third ruler board 9 and the fourth ruler board 12 are respectively provided with chalk holes 3 so as to facilitate insertion of the chalk holes 3 .

Wherein, the lower surfaces of the second ruler board 8, the third ruler board 9 and the fourth ruler board 12 are respectively installed with support columns 14, and the lower surfaces of the support columns 14 are located on the same horizontal plane as the bottom of the T-shaped board 6, Avoid direct friction between each set of rulers and the blackboard.

When the utility model is used: using the user, take out the teaching board from the placing box, assemble four sets of ruler boards, and the teaching board can be used to draw angles of 30°, 45°, 60°, 90° and 150° , and can quickly draw ovals and small circles. If you need to draw a larger circle, you can insert the chalk into the chalk hole 3, then contact the T-shaped plate 6 with the blackboard surface, and hold the U-shaped handle 4 to connect the T-shaped plate. 6. Rotate the chalk for the center of the circle to draw a circle. Different chalk holes 3 can draw circles with different diameters. When it is necessary to draw a parallelogram, the fourth ruler board 12 and the second ruler board 8 can be reversely assembled. When not in use , the four sets of ruler boards can be disassembled and placed in the storage box for storage, the design is simple, the cost is low, and it is more practical.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Equivalent replacement or modification of the technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. A portable mathematics teaching board is characterized by comprising a first ruler board (1), a chalk hole (3), a limiting board (5), a T-shaped board (6), a second ruler board (8) and a third ruler board (9);

the novel ruler is characterized in that the first ruler plate (1) is of an isosceles right triangle structure, slotted holes (2) are formed in the middle of the upper end of the first ruler plate (1) and the upper right end of the first ruler plate (1), a limiting plate (5) is installed at the lower right end of the first ruler plate (1), a U-shaped handle (4) is fixedly installed in the middle of the upper surface of the first ruler plate (1), a T-shaped plate (6) is fixedly installed at the left lower end of the lower surface of the first ruler plate (1), a third ruler plate (9) is installed at the upper end of the first ruler plate (1), an elliptical hole (10) is formed in the middle of the third ruler plate (9), a limiting plate (5) is fixedly installed in the middle of the bottom of the third ruler plate (9), the limiting plate (5) on the third ruler plate (9) is inserted into the slotted hole (2) in the top end of the first ruler plate (1), and three groups of angles of the third;

second chi board (8) is installed to first chi board (1) right-hand member, second chi board (8) are the isosceles right triangle structure, upper left end fixed mounting of second chi board (8) has limiting plate (5), slotted hole (2) have been seted up to second chi board (8) left side lower extreme inside, slotted hole (2) and limiting plate (5) of second chi board (8) left end closely laminate with limiting plate (5) and slotted hole (2) of first chi board (1) right side lower extreme respectively, be provided with slotted hole (2) in the middle of second chi board (8) right-hand member, fourth chi board (12) is installed to second chi board (8) right-hand member, fourth chi board (12) are the isosceles triangle structure, round hole (13) have been seted up in the middle of fourth chi board (12), limiting plate (5) are installed in the middle of fourth chi board (12) left end, limiting plate (5) in the middle of fourth chi board (12) insert slotted hole (2) in the middle of second chi board (8) right-hand member And (4) a section.

2. The portable mathematics teaching board according to claim 1, characterized in that the bottom periphery of said T-shaped board (6) is sleeved with a rubber layer (7).

3. A portable mathematics teaching board as claimed in claim 1, characterised in that said slotted holes (2) have a constructive shape equal to that of the limiting plate (5).

4. A portable mathematics teaching board according to claim 1, characterized in that the sides of said first (1), second (8), third (9) and fourth (12) boards are provided with graduation marks (11).

5. The portable mathematics teaching board according to claim 1, characterized in that said first ruler board (1), second ruler board (8), third ruler board (9) and fourth ruler board (12) are equipped with chalk holes (3) respectively.

6. A portable mathematics teaching board according to claim 1, characterized in that the lower surfaces of said second (8), third (9) and fourth (12) ruler boards are respectively equipped with a support pillar (14), the lower surface of said support pillar (14) and the bottom of the T-shaped board (6) are on the same horizontal plane.

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