Mathematical parabola dynamic demonstration device

Abstract

The utility model relates to the technical field of teaching aids, in particular to a mathematical parabola dynamic demonstration device, which comprises a supporting mechanism and a demonstration mechanism arranged on the supporting mechanism. Compared with the prior art, the demonstration device has the following advantages that the demonstration part adopts the magnetic drawing board, and the movement of the iron powder in the magnetic direction can be dynamically displayed through the rolling of the magnetic small ball on the magnetic drawing board, so that the trajectory of a parabola can be intuitively simulated, and the dynamic demonstration mode helps students to better understand the concept and nature of the parabola, so that the teaching efficiency is improved. The percussion part comprises a percussion unit and an angle adjusting unit, the angle adjusting unit allows a user to adjust the percussion angle according to needs so as to observe the change of a parabola at different angles, and the flexibility enables the device to be suitable for wider teaching scenes and experiment requirements; the magnetic balls can be conveniently collected and reused through the arrangement of the recycling part, and the magnetic balls can be prevented from being damaged during collision through an elastic cushion in the recycling box.

Description

TECHNICAL FIELD

[0001] The utility model relates to teaching aid technical field, concretely points to a mathematics parabola dynamic demonstration device. BACKGROUND

[0002] In the field of mathematics education, parabola as an important quadratic curve has extensive application and profound theoretical significance. However, the traditional teaching method often relies on static graphics and formula, which is difficult to intuitively and dynamically show the formation process and characteristics of parabola. In order to overcome this limitation and improve the teaching effect and the understanding depth of students, the mathematics parabola dynamic demonstration device emerges as the times require. However, the traditional dynamic demonstration device often uses mechanical or electronic means to simulate the motion trajectory of parabola, but these methods often have problems such as high cost, complex operation and difficult maintenance. In addition, these devices often lack intuitiveness and interactivity when showing the formation process of parabola, which is difficult to stimulate the learning interest and participation of students. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, one purpose of the utility model is to provide a mathematics parabola dynamic demonstration device, which is simple to operate, intuitive to display, and high in interactivity and interest.

[0004] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a mathematics parabola dynamic demonstration device, comprising:

[0005] A support mechanism comprising a bottom plate and a support rod arranged on the bottom plate;

[0006] A display mechanism comprising a mounting plate arranged on the support rod, wherein the mounting plate is provided with a display part, a transparent cover arranged on the display part, a firing part and a recycling part, and a scale line is arranged on the mounting plate along the edge of the display part.

[0007] Preferably, the display part comprises a magnetic drawing board arranged on the mounting plate, and a sliding groove is formed in the mounting plate, and a sliding rod for moving the iron powder on the magnetic drawing board in the magnetic direction is arranged in the sliding groove.

[0008] Preferably, the firing part comprises a firing unit and an angle adjusting unit.

[0009] Preferably, the transparent cover is arranged in a U shape.

[0010] Preferably, the angle adjusting unit comprises a rotating plate, a rotating shaft of the rotating plate is connected with an indicating plate, a fixed bolt with an end capable of abutting against a back surface of the mounting plate is threadedly connected to the rotating plate, an angle scale plate coaxially arranged with the rotating shaft of the rotating plate is fixedly arranged on the mounting plate, and the indicating plate is arranged on a top surface of the angle scale plate.

[0011] Preferably, the firing unit comprises a firing box arranged on the indicating plate, an opening is arranged on a top surface of the firing box, a limiting groove is arranged on a side wall of the firing box, a push plate is arranged in the firing box, a limiting block is arranged on a side wall of the push plate and is in sliding cooperation with the limiting groove, a T-shaped pull rod is arranged on the bottom surface of the push plate and penetrates through a bottom surface of the firing box, a spring is sleeved on the T-shaped pull rod and between the push plate and the bottom surface of the firing box, and a magnetic small ball is placed on the push plate.

[0012] Preferably, the recycling part comprises a recycling box arranged on the bottom surface of the mounting plate, an opening is arranged on a top surface of the recycling box, and a through groove for taking and placing the magnetic small ball is arranged on a side wall of the recycling box away from the mounting plate.

[0013] Preferably, an elastic pad is arranged on an inner bottom surface of the recycling box.

[0014] After the above structure is adopted, the utility model has the following advantages:

[0015] The application shows that the magnetic force drawing board is adopted, through rolling of the magnetic small ball on the magnetic force drawing board, movement of the iron powder in the magnetic force direction can be dynamically shown, so that the trajectory of the parabola is intuitively simulated, this dynamic demonstration mode is helpful for students to better understand the concept and property of the parabola, the firing part comprises the firing unit and the angle adjusting unit, wherein the angle adjusting unit allows the user to adjust the launching angle according to the needs, so as to observe the change of the parabola under different angles, this flexibility makes the device applicable to a wider teaching scene and experimental demand, the setting of the recycling part is convenient for collecting and repeatedly using the magnetic small ball, the elastic pad in the recycling box can also prevent the magnetic small ball from being damaged when impacting, the device helps students to deeply understand the concept and property of the parabola through the intuitive and dynamic demonstration mode, has good interactivity and interestingness, can stimulate the learning interest and participation of students, and improves the teaching effect.

[0016] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features will become apparent to those skilled in the art from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0018] Figure 1 is a structural diagram of the utility model Figure 1 .

[0019] Figure 2 is a structural diagram of the utility model Figure 2 .

[0020] Figure 3 is a front view of the utility model.

[0021] Figure 4 is Figure 3 a cross-sectional structural diagram of A-A in

[0022] Figure 5 is Figure 3 a cross-sectional structural diagram of B-B in

[0023] Figure 6 is Figure 5 an enlarged structural diagram of C in

[0024] Figure 7 is a partial structural diagram of the utility model.

[0025] As shown in the figure: 1, mounting plate; 2, transparent cover; 3, recycling box; 4, through slot; 5, sliding groove; 6, magnetic drawing board; 7, bottom plate; 8, support rod; 9, angle scale plate; 10, sliding rod; 11, fixing bolt; 12, rotating plate; 13, indicator plate; 14, firing box; 15, push plate; 16, T-shaped pull rod; 17, spring. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] In conjunction with the accompanying Figures 1-7 A mathematical parabola dynamic demonstration device, comprising a supporting mechanism and a display mechanism arranged on the supporting mechanism, the supporting mechanism comprising a bottom plate 7 and a supporting rod 8 arranged on the bottom plate 7, the display mechanism comprising a mounting plate 1 arranged on the supporting rod 8, the mounting plate 1 being provided with a display part, a transparent cover 2 arranged on the display part, a firing part and a recycling part, and a scale line being arranged on the mounting plate 1 along the edge of the display part.

[0029] The display part comprises a magnetic drawing board 6 arranged on the mounting plate 1, a sliding groove 5 is formed on the mounting plate 1, and a sliding rod 10 for moving the iron powder on the magnetic drawing board 6 in the magnetic direction is slidingly arranged in the sliding groove 5, and the mounting plate 1 is arranged obliquely so that the magnetic small ball can move along the magnetic drawing board 6, the magnetic drawing board 6 adopts an existing product on the market, and the iron powder is uniformly distributed and the shape of the parabola is clearly displayed by using the magnetic small ball, and the sliding rod 10 can erase the formed parabola shape, facilitating the display of different parabola shapes.

[0030] The transparent cover 2 is arranged in a U shape to limit the movement range of the magnetic small ball and prevent it from falling aside, and also facilitates the observation of students.

[0031] The firing part comprises a firing unit and an angle adjusting unit. The angle adjusting unit comprises a rotating plate 12, the rotating shaft of the rotating plate 12 penetrates the mounting plate 1 and is connected with an indicating plate 13, a fixed bolt 11 with an end capable of abutting against the back of the mounting plate 1 is threadedly connected to the rotating plate 12, an angle scale plate 9 arranged concentrically with the rotating shaft of the rotating plate 12 is fixedly arranged on the mounting plate 1, the indicating plate 13 is arranged on the top surface of the angle scale plate 9, the indicating unit cooperates with the angle scale plate 9 to indicate the launching angle, the fixed bolt 11 is loosened to rotate the rotating plate 12, thereby driving the indicating plate 13 to rotate, and the fixed bolt 11 is tightened to fix it after reaching the appropriate angle.

[0032] The firing unit comprises a firing box 14 arranged on the indicating plate 13, the top surface of the firing box 14 is provided with an opening, a limiting slot is arranged on the side wall of the firing box 14, a push plate 15 is arranged in the firing box 14, the side wall of the push plate 15 is provided with a limiting block in sliding fit with the limiting slot, the bottom surface of the push plate 15 is provided with a T-shaped pull rod 16 penetrating through the bottom surface of the firing box 14, a spring 17 is sleeved on the T-shaped pull rod 16 and between the bottom surface of the push plate 15 and the firing box 14, a magnetic small ball is placed on the push plate 15, the T-shaped pull rod 16 is pulled down, the spring 17 is compressed, after the hand is released, under the restoring action of the spring 17, the magnetic small ball is pushed by the push plate 15 and is ejected, the magnetic small ball moves along the surface of the magnetic drawing plate 6, and a parabolic trajectory of the movement of the magnetic small ball is formed on the magnetic drawing plate 6.

[0033] The recycling part comprises a recycling box 3 arranged on the bottom surface of the mounting plate 1, the top surface of the recycling box 3 is provided with an opening, a through slot 4 for taking and placing the magnetic small ball is arranged on the side wall of the recycling box 3 away from the mounting plate 1, and an elastic pad is arranged on the inner bottom surface of the recycling box 3, the ejected magnetic small ball finally falls into the recycling box 3 to realize recycling, the elastic pad is arranged on the inner bottom surface of the recycling box 3 and is used for reducing the impact force of the magnetic small ball and the bottom of the recycling box 3 and protecting the magnetic small ball and the recycling box 3 from being damaged.

[0034] The above describes the utility model and its implementation mode, and the description is not limited, and the shown in the full text is only one of the implementation modes of the utility model, and the actual structure is not limited. In general, if the ordinary skilled person in the art is inspired, without departing from the creative purpose of the utility model, without creative design, the similar structure mode and the embodiment of the technical scheme should belong to the protection scope of the utility model.

Claims

1. A dynamic demonstration device for mathematical parabolas, characterized in that, include: A support mechanism, the support mechanism including a base plate and a support rod disposed on the base plate; The display mechanism includes a mounting plate disposed on the support rod. The mounting plate is provided with a display section, a transparent protective cover covering the display section, a firing section, and a recovery section. The mounting plate is provided with scale lines along the edge of the display section.

2. The dynamic demonstration device for mathematical parabolas according to claim 1, characterized in that: The display unit includes a magnetic drawing board mounted on the mounting plate. The mounting plate has a groove, and a sliding rod for moving iron powder on the magnetic drawing board along the magnetic direction is slidably disposed in the groove.

3. The dynamic demonstration device for mathematical parabolas according to claim 1, characterized in that: The firing mechanism includes a firing unit and an angle adjustment unit.

4. The dynamic demonstration device for mathematical parabolas according to claim 1, characterized in that: The transparent shield is U-shaped.

5. The dynamic demonstration device for mathematical parabolas according to claim 3, characterized in that: The angle adjustment unit includes a rotating plate, the rotating shaft of which passes through the mounting plate and is connected to an indicator plate. The rotating plate is threaded with a fixing bolt whose end can abut against the back of the mounting plate. An angle scale plate coaxial with the rotating shaft of the rotating plate is fixed on the mounting plate, and the indicator plate is located on the top surface of the angle scale plate.

6. The dynamic demonstration device for mathematical parabolas according to claim 5, characterized in that: The firing unit includes a firing box disposed on the indicator plate. The top surface of the firing box has an opening, and a limiting groove is formed on the side wall of the firing box. A push plate is provided in the firing box, and a limiting block that slides with the limiting groove is provided on the side wall of the push plate. A T-shaped pull rod is provided on the bottom surface of the push plate, penetrating the bottom surface of the firing box. A spring is sleeved on the T-shaped pull rod and between the push plate and the bottom surface of the firing box. A magnetic ball is placed on the push plate.

7. The dynamic demonstration device for mathematical parabolas according to claim 6, characterized in that: The recycling section includes a recycling box disposed on the bottom surface of the mounting plate. The top surface of the recycling box has an opening, and a groove for taking out and placing the magnetic ball is formed on the side wall away from the mounting plate.

8. The dynamic demonstration device for mathematical parabolas according to claim 7, characterized in that: An elastic pad is provided on the inner bottom surface of the recycling box.

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