CN210821559U - A math teaching tool - Google Patents

Abstract

The utility model discloses a mathematical education plotting tool, which comprises a main shaft, wherein the bottom of the main shaft is provided with a fixed block, the top of the main shaft is provided with a stop block, an angle support plate, an auxiliary drawing ruler, a telescopic bracket and a drawing board are sequentially arranged outside the main shaft from bottom to top, wear-resistant gaskets are arranged among the angle support plate, the auxiliary drawing ruler, the telescopic bracket and the drawing board, a horizontal chamber is arranged in the angle support plate, a horizontal ball is arranged in the horizontal chamber, a scale mark is arranged on the auxiliary drawing ruler, a chute is arranged in the auxiliary drawing ruler, a chalk fixing slider is arranged in the chute, arrow corresponding scale marks are respectively arranged on the left side and the right side of the top of the chalk fixing slider, and a locking bolt is arranged on the left side of the chalk fixing slider. The tool does not need to be replaced back and forth, the workload of teachers is greatly reduced, the teaching quality is improved, and the portable multifunctional teaching machine is convenient to carry.

Description

A math teaching tool

technical field

The utility model relates to the field of teaching appliances, in particular to a drawing tool for mathematics teaching.

Background technique

Mathematics (mathematics or maths) is a discipline that studies concepts such as quantity, structure, change, space, and information. From a certain perspective, it belongs to a type of formal science. Mathematicians and philosophers have a range of views on the exact scope and definition of mathematics. In the development of human history and social life, mathematics also plays an irreplaceable role, and it is also an indispensable basic tool for learning and researching modern science and technology.

In the process of mathematics teaching, a lot of auxiliary teaching aids are needed to complete the drawing, such as ruler, compass, ellipse, triangular board and protractor. Trouble, you need to alternately use a variety of drawing tools when drawing, which is a waste of time and energy. In addition, there are also some combination rulers, but because of the combination of various rulers, it is inconvenient to carry the rulers. Math teaching aids that are combined with drawing tools and are easy to carry.

Utility model content

The purpose of the present utility model is to overcome the deficiencies of the prior art, and provide a drawing tool for mathematics teaching, including a main shaft, a fixed block is arranged at the bottom of the main shaft, and a stopper is arranged at the top of the main shaft, and the outer part of the main shaft is arranged in order from bottom to top. An angle support plate, an auxiliary drawing ruler, a telescopic bracket and a drawing board are arranged, and wear-resistant washers are arranged between the angle support plate, the auxiliary drawing ruler, the telescopic bracket and the drawing board, and a horizontal space is arranged in the angle support plate. A horizontal ball is set in the room, a scale line is set on the auxiliary drawing ruler, a chute is set in the auxiliary painting ruler, a chalk fixing slider is set in the chalk, and the arrows corresponding to the scale are respectively set on the left and right sides of the top of the chalk fixing slide. A locking bolt is arranged on the left side of the chalk fixing slider, and the locking bolt is arranged in the groove on the left side of the auxiliary drawing ruler.

Preferably, the telescopic bracket includes a fixed rod, a movable rod is arranged in the fixed rod, a ruler splint is arranged at the end of the movable rod, and the movable rod is connected with the fixed rod through a first auxiliary locking bolt, and the ruler splint is left and right. Second auxiliary locking bolts are respectively arranged on both sides.

Preferably, the drawing board is transparent, and several drawing holes are arranged in the drawing board evenly and equidistantly, and the drawing holes are arranged in triangles, circles, quadrilaterals, pentagons and hexagons.

Preferably, a circular ring plate is arranged on the angle support plate, an angle scribe line is arranged on the circular ring plate, and the circular ring plate is arranged on the periphery of the auxiliary drawing ruler, and a waterproof film is arranged on the outer surface of the circular ring plate.

Preferably, the angular support plate and the telescopic support are provided with scale lines, and the stopper and the main shaft are threadedly connected and are detachable.

The beneficial effects of the utility model are as follows: the structure is simple, the operation is convenient, and the drawing tools such as a ruler, a compass, a triangular plate and a protractor are integrated into one set. It can reduce the workload, improve the quality of teaching, and is more convenient to carry; the setting of the horizontal ball between the levels will improve the accuracy of painting.

Description of drawings

The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the structural representation of the main shaft in the present utility model;

FIG. 3 is a schematic diagram of the structure of the drawing board in the present invention.

In the picture: 1. Main shaft; 2. Fixed block; 3. Block; 4. Angle support plate; 5. Auxiliary drawing ruler; 6. Telescopic bracket; 7. Drawing board; 8. Wear-resistant washer; 9. Horizontal space; 10, level ball; 11, scale line; 12, chute; 13, chalk fixed slider; 14, arrow; 15, locking bolt; 16, fixed rod; 17, movable rod; 18, first auxiliary locking bolt ; 19. Ruler splint; 20. Second auxiliary locking bolt; 22. Drawing hole; 23. Ring plate; 24. Angle engraving line.

Detailed ways

Any feature disclosed in this specification, unless expressly stated otherwise, may be replaced by other equivalent or alternative features serving a similar purpose. That is, unless expressly stated otherwise, each feature is but one example of a series of equivalent or similar features.

As shown in Figure 1-3, a drawing tool for mathematics teaching includes a main shaft 1, a fixed block 2 is arranged at the bottom of the main shaft 1, a stopper 3 is arranged at the top of the main shaft 1, and angles are set in order from bottom to top outside the main shaft 1 The support plate 4, the auxiliary drawing ruler 5, the telescopic support 6 and the drawing board 7, and the angle support plate 4, the auxiliary drawing ruler 5, the telescopic support 6 and the drawing board 7 are all provided with wear-resistant washers 8, and the angle support plate A horizontal space 9 is set in 4, a horizontal ball 10 is set in the horizontal space 9, a scale line 11 is set on the auxiliary drawing ruler 5, a chute 12 is set in the auxiliary drawing ruler 5, and a chalk fixing slide is set in the chute 12. In block 13, arrows 14 are respectively arranged on the left and right sides of the top of the chalk fixing slider 13 corresponding to the scale lines 11. The left side of the chalk fixing slider 13 is provided with a locking bolt 15, and the locking bolt 15 is arranged on the left side of the auxiliary drawing ruler 5 in the groove. The telescopic bracket 6 includes a fixed rod 16, a movable rod 17 is arranged in the fixed rod 16, a ruler splint 19 is arranged at the end of the movable rod 17, and the movable rod 17 is connected with the fixed rod 16 through the first auxiliary locking bolt 18, Second auxiliary locking bolts 20 are respectively provided on the left and right sides of the ruler clamping plate 19 . The drawing board 7 is transparent, and a plurality of drawing holes 22 are evenly and equally spaced in the drawing board 7, and the drawing holes 22 are arranged in triangles, circles, quadrilaterals, pentagons and hexagons. The angle support plate 4 is provided with a circular ring plate 23, the circular ring plate 23 is provided with an angle scribe line 24, and the circular ring plate 23 is arranged on the periphery of the auxiliary drawing ruler 5, and the outer surface of the circular ring plate 23 is provided with a waterproof film. The setting of the waterproof film will achieve the protective effect and prolong its service life. Both the angle support plate 4 and the telescopic support 6 are provided with scale lines, and the stopper 3 and the main shaft 1 are threadedly connected and are detachable. The telescopic bracket 6 is locked and fixed by the first auxiliary locking bolt 18 by controlling the position of the movable rod 17 in the fixed rod 16 to achieve the effect of fixing the length. The angle support plate 4 , the auxiliary drawing ruler 5 , the telescopic bracket 6 and the drawing board 7 can all be freely rotated 360 degrees. The angle support plate 4 , the auxiliary drawing ruler 5 and the telescopic bracket 6 are symmetrically arranged in two left and right sides with the main axis 1 as the center. The auxiliary drawing ruler 5 is a ruler. The bottom of the fixing block 2 is set as a suction cup or a magnet. The provision of the wear washer 8 will prolong the service life of the drawing tool.

The working principle of this specific embodiment is as follows: firstly, use the fixing block 2 to fix the math teaching drawing tool on the blackboard, use the required tools according to the needs, and when the protractor needs to be used, only use the angle line on the ring plate 23 Use the horizontal ball 10 to measure the angle, and when you need to use a ruler to draw, just fix the chalk in the chalk fixing slider 13, and then use the ring plate 23 to rotate the auxiliary drawing ruler 5, and then use the chalk to fix the slider 13 Move to the desired position in the chute 12. At the same time, when the chalk fixing slider 13 needs to be fixed for painting, it is only necessary to use the locking bolt 15 to fix it. Inside the chalk fixing slider 13, adjust the required position of the chalk fixing slider 13, and then rotate and rotate the auxiliary drawing ruler 5. When you need to use other different tools, you only need to place it in the ruler splint 19, and then pass The second auxiliary locking bolt 20 is fixed, and the telescopic bracket 6 can be freely rotated for painting by adjusting the required length of the telescopic bracket 6. When the drawing board 7 needs to be used, just rotate the required drawing hole 22 to the required position, and then It can be drawn with chalk, and when the drawing board 7 is not in use, the stopper 3 can be disassembled first, and then the wear-resistant washer 8 and the drawing board 7 can be disassembled in turn.

The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims (5)

1. A drawing tool for mathematics teaching, comprising a main shaft (1), characterized in that: a fixed block (2) is arranged at the bottom of the main shaft (1), a stopper (3) is arranged at the top of the main shaft (1), and the main shaft (1) is provided with a stopper (3). (1) An angle support plate (4), an auxiliary drawing ruler (5), a telescopic bracket (6) and a drawing board (7) are arranged in order from bottom to top, and the angle support plate (4), the auxiliary drawing ruler (5), A wear-resistant washer (8) is arranged between the telescopic bracket (6) and the drawing board (7), a horizontal space (9) is arranged in the angle support plate (4), and a horizontal ball (9) is arranged in the horizontal space (9). 10), a scale line (11) is arranged on the auxiliary drawing ruler (5), a chute (12) is arranged in the auxiliary drawing ruler (5), and a chalk fixing slider (13) is arranged in the sliding slot (12) , on the left and right sides of the top of the chalk fixing slider (13) are respectively provided with arrows (14) corresponding to the scale lines (11), the left side of the chalk fixing slider (13) is provided with locking bolts (15), and the locking bolts ( 15) Set in the groove on the left side of the auxiliary drawing ruler (5). 2. A math teaching drawing tool according to claim 1, characterized in that: the telescopic support (6) comprises a fixed rod (16), and a movable rod (17) is arranged in the fixed rod (16), The end of the movable rod (17) is provided with a ruler splint (19), the movable rod (17) is connected with the fixed rod (16) through a first auxiliary locking bolt (18), and the left and right sides of the ruler splint (19) Second auxiliary locking bolts (20) are respectively arranged inside. 3. A kind of mathematics teaching drawing tool according to claim 1, is characterized in that: described drawing board (7) is set transparently, and evenly and equidistantly set several drawing holes (22) in drawing board (7) ), the drawing holes (22) are arranged in triangles, circles, quadrilaterals, pentagons and hexagons. 4. A kind of mathematics teaching drawing tool according to claim 1 is characterized in that: an annular plate (23) is arranged on the angle support plate (4), and an angle scribe line (23) is arranged on the annular plate (23). 24), and the annular plate (23) is arranged on the periphery of the auxiliary drawing ruler (5), and the outer surface of the annular plate (23) is provided with a waterproof film. 5. A math teaching drawing tool according to claim 1, characterized in that: scale lines are provided on the angle support plate (4) and the telescopic support (6), the stopper (3) and the The main shaft (1) is threaded and set to be detachable.

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