Mathematics teaching drawing device

Abstract

The utility model relates to the technical field of teaching drawing devices, in particular to a mathematics teaching drawing device which comprises a line drawing leg, a positioning leg is rotatably connected to the side face of the line drawing leg, a second fixing block is fixedly installed on the bottom face of the line drawing leg, and a fixing assembly is fixedly installed on the side face of the second fixing block. A clamping device is fixedly installed on the other side face of the fixing assembly and comprises a first fixing block, a rotary knob is rotationally connected to the side face of the first fixing block, a sponge cushion is rotationally connected to one end of the rotary knob, and an extension rod is fixedly installed in the first fixing block. The compasses can be flexibly combined with a ruler through structures such as the line drawing leg, the positioning leg and the first round ruler, the frequency of switching drawing tools in the drawing process of a teacher can be reduced, the drawing efficiency is improved, and chalks with different lengths can be fixed more stably and conveniently by arranging structures such as a clamping device, a fixing circular ring and an extension rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching mapping device technical field especially relates to a mathematical teaching mapping device. BACKGROUND

[0002] When the mathematics teacher is teaching, the knowledge is often needed to be imparted through drawing, and the ordinary ruler can only draw simple figures, and the slightly more complex figure needs to be drawn with the aid of the teaching compass, and the mathematics teacher needs to determine the radius with the ruler and draw the circle with the compass, so that the mapping tool needs to be switched constantly, the mapping time is increased, and the device needs to select the long chalk to be fixed during drawing, and the short chalk is prone to falling, line interruption and other phenomena during drawing, and therefore, the mathematical teaching mapping device becomes the current urgent problem to be solved. SUMMARY

[0003] The utility model discloses a mathematical teaching mapping device, which can realize the functions of drawing a circle, drawing a triangle and drawing a square, and can realize the functions of drawing a circle, drawing a triangle and drawing a square.

[0004] The utility model discloses the following technical scheme: a mathematical teaching mapping device, including the line leg, the side surface rotation of line leg is connected with the positioning leg, the bottom surface fixed mounting of line leg has fixed block no.

[0005] Preferably, the side surface of the line leg and the positioning leg is fixedly installed with a moving assembly, the moving assembly includes a fixed plate, the inside of the fixed plate is slidably connected with a moving rod, one end of the moving rod is fixedly installed with a sliding block, and the bottom of the positioning leg is fixedly installed with a positioning needle.

[0006] Preferably, the line leg and the positioning leg are rotatably connected through an axis, and the inner side surface of the line leg and the positioning leg is provided with a slot.

[0007] Preferably, the curvature of the sponge pad is in line with the surface of the extension rod. Here, the friction between the fixed block one and the extension rod can be increased by the sponge pad, so that the chalk in the extension rod is more stable and fixed on the side of the line drawing leg.

[0008] Preferably, the size of the first circular ruler is consistent with the second circular ruler, the first circular ruler and the second circular ruler are fixed in the line drawing leg and the positioning leg by the bolt one and the bolt two respectively, and the first circular ruler and the second circular ruler are fixedly connected by the bolt three. Here, the rotation of the first circular ruler and the second circular ruler can be more flexible and convenient by the bolt one, the bolt two and the bolt three.

[0009] Preferably, the inside of the fixed block two is provided with a round rod, one end of the round rod is fixedly installed with a clamping block, the surface of the clamping block is slidably connected with a fixing assembly, the fixing assembly comprises a movable cavity one, the side surface of the movable cavity one is fixedly connected with a movable cavity two, the other side surface of the movable cavity two is fixedly connected with a movable cavity three, and the bottom of the positioning leg is fixedly installed with a suction cup. Here, the cooperation of the round rod, the clamping block and the fixing assembly and the like can make the fixing between the clamping device and the line drawing leg more convenient.

[0010] Preferably, the number of the suction cups is two groups, and the two groups of suction cups are symmetrically distributed on the two sides of the positioning needle. Here, the friction between the positioning leg and the blackboard can be increased by the suction cup, so that the drawing is also more stable.

[0011] Compared with the prior art, the advantages and positive effects of the utility model lie in that:

[0012] 1、In the utility model, the combination of the compasses and the ruler can be flexible by the line drawing leg, the positioning leg, the first circular ruler and the like, the number of switching drawing tools during drawing by teachers can be reduced, the drawing efficiency is improved, different lengths of chalk can be more stably and conveniently fixed by the cooperation of the clamping device, the fixed ring and the extension rod and the like.

[0013] 2、In the utility model, the cooperation of the round rod, the clamping block and the fixing assembly and the like can make the fixing between the clamping device and the line drawing leg more convenient, the friction between the positioning leg and the blackboard can be increased by the suction cup, and the drawing device is also more stable during drawing. DRAWINGS

[0014] Figure 1 A schematic view of a mathematical teaching drawing device is provided for the utility model;

[0015] Figure 2 A structural schematic view of a mathematical teaching drawing device in the form of a triangular plate is provided for the utility model;

[0016] Figure 3The utility model provides a mathematical teaching mapping device is shown in the structure schematic diagram of straight ruler form

[0017] Figure 4 The utility model provides a mathematical teaching mapping device Figure 1 The utility model provides a mathematical teaching mapping device

[0018] Figure 5 The utility model provides a mathematical teaching mapping device's side view

[0019] Figure 6 The utility model provides a mathematical teaching mapping device's section view

[0020] Figure 7 The utility model provides a mathematical teaching mapping device Figure 6 The utility model provides a mathematical teaching mapping device

[0021] Figure 8 The utility model provides a mathematical teaching mapping device

[0022] Figure 9 The utility model provides a mathematical teaching mapping device

[0023] Legend:

[0024] 1, line leg, 2, positioning leg, 3, pivot, 4, clamping device, 41, knob, 42, sponge pad, 43, fixed block one, 5, positioning needle, 6, suction cup, 7, bolt one, 8, round ruler one, 81, round ruler two, 9, sliding groove one, 10, bolt two, 11, fixed block two, 12, fixed assembly, 121, movable cavity one, 122, movable cavity two, 123, movable cavity three, 13, clamping block, 14, round bar, 15, notch, 16, moving assembly, 161, fixed plate, 162, moving rod, 163, sliding block, 17, chalk, 18, fixed ring, 19, extension rod, 20, bolt three. Specific embodiments

[0025] In order to more clearly understand the above purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and examples.It should be explained that the embodiment of the application and the features in the embodiment can be combined mutually without conflict.

[0026] In the following description, a lot of specific details are set forth in order to fully understand the utility model, however, the utility model can also be implemented in other ways different from the description herein, therefore, the utility model is not limited to the specific embodiment disclosed in the following disclosure.

[0027] Example one

[0028] Please refer to Figures 1-8 The utility model provides a technical scheme: a mathematical teaching mapping device, fixedly installed with mobile assembly 16 on the side surface of line drawing leg 1 and positioning leg 2, mobile assembly 16 includes fixed plate 161, the inside of fixed plate 161 is slidably connected with moving rod 162, one end of moving rod 162 is fixedly installed with sliding block 163, the bottom of positioning leg 2 is fixedly installed with positioning needle 5, by sliding moving rod 162, sliding block 163 is slid on the surface of slot 15, when sliding block 163 is attached to the surface of round ruler one 8 and round ruler two 81, then fix, the mode of the ninety degrees triangle board formed by line drawing leg 1 and positioning leg 2 is more stable, the bottom surface of line drawing leg 1 is fixedly installed with fixed block two 11, the side surface of fixed block two 11 is fixedly installed with fixed assembly 12, the other side surface of fixed assembly 12 is fixedly installed with clamping device 4, clamping device 4 includes fixed block one 43, the side surface of fixed block one 43 is rotatably connected with knob 41, one end of knob 41 is rotatably connected with sponge pad 42, the inside of fixed block one 43 is fixedly installed with extension rod 19, the curvature of sponge pad 42 is attached to the surface of extension rod 19, the friction between fixed block one 43 and extension rod 19 can be increased by sponge pad 42, so that the chalk 17 in extension rod 19 is more stably fixed on the side surface of line drawing leg 1, the bottom end of extension rod 19 is fixedly installed with chalk 17, the surface of extension rod 19 is threadedly connected with fixed ring 18, the inside of line drawing leg 1 is slidably connected with round ruler one 8, the surface of round ruler one 8 is provided with sliding groove one 9, the inside of positioning leg 2 is slidably connected with round ruler two 81, the size of round ruler one 8 and round ruler two 81 is identical, round ruler one 8 and round ruler two 81 are fixed in the inside of line drawing leg 1 and positioning leg 2 through bolt one 7 and bolt two 10 respectively, round ruler one 8 and round ruler two 81 are fixedly connected through bolt three 20, the rotation of round ruler one 8 and round ruler two 81 can be more flexible and convenient through bolt one 7, bolt two 10 and bolt three 20, line drawing leg 1 and positioning leg 2 are rotatably connected through pivot 3, the inside surface of line drawing leg 1 and positioning leg 2 is provided with slot 15, sliding block 163 is attached to the surface of round ruler one 8 and round ruler two 81, through the rotation of pivot 3, line drawing leg 1 and positioning leg 2 can be fixed into the form of ruler and triangle board.

[0029] Example two

[0030] Please refer to Figure 9The inner part of the fixed block two 11 is provided with a round rod 14, one end of the round rod 14 is fixedly installed with a clamping block 13, the surface of the clamping block 13 is slidably connected with a fixing assembly 12, the fixing assembly 12 comprises a movable cavity one 121, the side surface of the movable cavity one 121 is fixedly connected with a movable cavity two 122, the other side surface of the movable cavity two 122 is fixedly connected with a movable cavity three 123, the bottom of the positioning leg 2 is fixedly installed with a suction disc 6, through the cooperation of the round rod 14, the clamping block 13 and the fixing assembly 12 and other structures, the fixing between the clamping device 4 and the line drawing leg 1 can be more convenient, the number of the suction disc 6 is two groups, the two groups of suction discs 6 are symmetrically distributed on the two sides of the positioning needle 5, through the suction disc 6, the friction between the positioning leg 2 and the blackboard can be increased, so that the drawing is also more stable.

[0031] Working principle: when the drawing personnel uses the drawing device, first, the clamping device 4 is fixedly installed on the outer side surface of the fixed block two 11, the round rod 14 is sequentially inserted through the fixed block two 11, the movable cavity one 121 and the movable cavity two 122, when the clamping block 13 is attached to the surface of the movable cavity three 123, the round rod 14 is rotated to the right, the clamping block 13 is also rotated, the clamping block 13 is completely attached to the movable cavity two 122 by further pulling the round rod 14 outward, the clamping device 4 is fixed on the side surface of the fixed block two 11, secondly, the knob 41 is counterclockwise rotated, the chalk 17 is put into the inner part of the fixed block one 43, then the sponge pad 42 is completely attached to the surface of the chalk 17 by clockwise rotating, when the length of the chalk 17 is short, the clamping device 4 is not easy to fix, the extension rod 19 can be connected to one end of the chalk 17, the fixed limiting is carried out by rotating the fixed ring 18, then the extension rod 19 is fixed, then when drawing a circle, first, the line drawing leg 1 and the positioning leg 2 are rotated to form a straight ruler shape to determine the radius length of the circle, then the positioning needle 5 is aligned with one end of the radius, the line drawing leg 1 is rotated 360 degrees to form a complete circle, the suction disc 6 needs to be completely attached to the blackboard to increase the friction between the positioning leg 2 and the blackboard when drawing, it needs to be noted that when the triangular plate shape is converted, the sliding moving rod 162 is slidably moved, the sliding block 163 two is attached to the surface of the round ruler one 8 and the round ruler two 81, then the nut is used for fixing, so that the triangular plate shape is more stable.

[0032] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms, any skilled person in the art can change or modify the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A mathematical teaching plotting device comprising a line drawing leg (1) characterised in that: The side of the line drawing leg (1) is rotatably connected with the positioning leg (2), the bottom surface of the line drawing leg (1) is fixedly installed with a fixed block two (11), the side surface of the fixed block two (11) is fixedly installed with a fixing assembly (12), the other side surface of the fixing assembly (12) is fixedly installed with a clamping device (4), the clamping device (4) comprises a fixed block one (43), the side surface of the fixed block one (43) is rotatably connected with a knob (41), one end of the knob (41) is rotatably connected with a sponge pad (42), the inside of the fixed block one (43) is fixedly installed with an extension rod (19), the bottom end of the extension rod (19) is fixedly installed with a chalk (17), the surface of the extension rod (19) is threadedly connected with a fixed ring (18), the inside of the line drawing leg (1) is slidably connected with a circular ruler one (8), the surface of the circular ruler one (8) is provided with a sliding groove one (9), the inside of the positioning leg (2) is slidably connected with a circular ruler two (81).

2. The mathematical teaching plotting device according to claim 1, characterized in that: The side of the line drawing leg (1) and the positioning leg (2) is fixedly installed with a moving assembly (16), the moving assembly (16) comprises a fixed plate (161), the inside of the fixed plate (161) is slidably connected with a moving rod (162), one end of the moving rod (162) is fixedly installed with a sliding block (163), the bottom of the positioning leg (2) is fixedly installed with a positioning needle (5).

3. The mathematical teaching plotting device according to claim 2, characterized in that: The line drawing leg (1) and the positioning leg (2) are rotatably connected through the rotating shaft (3), the inside surface of the line drawing leg (1) and the positioning leg (2) is provided with a notch (15), the surface of the sliding block (163) is attached to the circular ruler one (8) and the circular ruler two (81).

4. The mathematical teaching plotting device of claim 1, wherein: The curvature of the sponge pad (42) is attached to the surface of the extension rod (19).

5. The mathematical teaching plotting device of claim 1, wherein: The size of the circular ruler one (8) and the circular ruler two (81) is consistent, the circular ruler one (8) and the circular ruler two (81) are fixed in the inside of the line drawing leg (1) and the positioning leg (2) through the bolt one (7) and the bolt two (10), the circular ruler one (8) and the circular ruler two (81) are fixedly connected through the bolt three (20).

6. The mathematical teaching plotting device of claim 1, wherein: The inside of the fixed block two (11) is provided with a round rod (14), one end of the round rod (14) is fixedly installed with a clamping block (13), the surface of the clamping block (13) is slidably connected with a fixing assembly (12), the fixing assembly (12) comprises a movable cavity one (121), the side surface of the movable cavity one (121) is fixedly connected with a movable cavity two (122), the other side surface of the movable cavity two (122) is fixedly connected with a movable cavity three (123), the bottom of the positioning leg (2) is fixedly installed with a suction disc (6).

7. The mathematical teaching plotting device according to claim 6, characterized in that: The number of the suction disc (6) is two groups, the two groups of the suction disc (6) are symmetrically distributed on the two sides of the positioning needle (5).

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