CN202956960U - Model display device for teaching mathematics - Google Patents

Abstract

The utility model discloses a model display device for mathematical teaching and relates to the field of mathematical teaching, which is designed to meet the requirement on the omnibearing, continuous and intelligent display of models during the mathematical teaching process. According to the technical scheme of the utility model, the tail end of a crane is fixed at the center of the upper surface of a base. One end of a connecting shaft is fixed to the top end of the crane, while the other end of the connecting shaft is connected with the center of bottom surface of a turntable through a bearing. Both the base and the turntable are parallel to the horizontal plane. Within a control unit, an infrared signal receiving circuit is used for receiving infrared signals transmitted from an infrared signal transmitting circuit, and the infrared signal output end of the infrared signal receiving circuit is connected with the infrared signal input end of a control circuit. The turntable drive signal output end of the control circuit is connected with the drive signal input end of a turntable drive circuit. The turntable is driven to rotate by the turntable drive circuit. The crane drive signal output end of the control circuit is connected with the drive signal input end of a crane drive circuit. The crane is driven to move up and down by the crane drive circuit. The model display device is used for displaying models during the mathematical teaching process.

Description

Model display device for teaching mathematics

technical field

The utility model relates to the field of mathematics teaching, in particular to a model display device.

Background technique

At present, in mathematics teaching, in order to give students an intuitive impression, some specific models are often used for display, such as cones, prisms, etc. Teachers demonstrate to students by holding these models. This display method is relatively primitive, and it is difficult to achieve continuous all-round display. Therefore, there is an urgent need for a device that can carry out all-round continuous intelligent display of models in mathematics teaching to meet the needs.

Utility model content

The utility model provides a model display device for mathematics teaching in order to meet the demand for all-round and continuous intelligent display of models in mathematics teaching.

A model display device for mathematics teaching, which includes a turntable 5, a lifting frame 7, a connecting shaft 9, a base 10 and a control unit;

The end of the lifting frame 7 is fixed on the center of the upper surface of the base 10; one end of the connecting shaft 9 is fixed on the top of the lifting frame 7; the center of the bottom surface of the turntable 5 is connected with the other end bearing of the connecting shaft 9; , and both are parallel to the horizontal plane;

The control unit includes an infrared signal transmitting circuit 1, an infrared signal receiving circuit 2, a control circuit 3, a turntable driving circuit 4 and a lifting frame driving circuit 6;

The infrared signal receiving circuit 2 is used to receive the infrared signal emitted by the infrared signal transmitting circuit 1; the infrared signal output terminal of the infrared signal receiving circuit 2 is connected with the infrared signal input terminal of the control circuit 3; the turntable drive signal of the control circuit 3 The output end is connected to the drive signal input end of the turntable drive circuit 4; the turntable drive circuit 4 sends a drive signal to the turntable drive device 50, and the turntable drive device 50 is used to drive the turntable 5 to rotate; the lifting frame drive signal output end of the control circuit 3 It is connected with the drive signal input terminal of the lifting frame driving circuit 6; the lifting frame driving circuit 6 sends a driving signal to the lifting driving mechanism 60, and the lifting driving mechanism 60 is used to drive the lifting frame 7 to rise or fall.

It also includes a timer 8 , the timer signal output terminal of the timer 8 is connected with the timer signal input terminal of the control circuit 3 .

When the utility model is in use, the device is set on a flat table, and then the mathematical model is placed on the turntable. When the teacher is teaching, the teacher controls the turntable to rotate or stop by pressing the infrared remote controller (infrared signal transmitting circuit). Rotate, so as to drive the model on the turntable to rotate or stay still, and then realize the all-round continuous intelligent display of the model. The utility model can fully meet the demand for all-round and continuous intelligent display of models in mathematics teaching.

Description of drawings

Fig. 1 is a schematic structural diagram of the utility model; Fig. 2 is a schematic diagram of the control principle of the utility model.

Detailed ways

The specific embodiment one, illustrate this specific embodiment in conjunction with Fig. 1 and Fig. 2, be used for the model display device of mathematics teaching, it comprises turntable 5, lifting frame 7, connecting shaft 9, base 10 and control unit;

The end of the lifting frame 7 is fixed on the center of the upper surface of the base 10; one end of the connecting shaft 9 is fixed on the top of the lifting frame 7; the center of the bottom surface of the turntable 5 is connected with the other end bearing of the connecting shaft 9; , and both are parallel to the horizontal plane;

The control unit includes an infrared signal transmitting circuit 1, an infrared signal receiving circuit 2, a control circuit 3, a turntable driving circuit 4 and a lifting frame driving circuit 6;

The infrared signal receiving circuit 2 is used to receive the infrared signal emitted by the infrared signal transmitting circuit 1; the infrared signal output terminal of the infrared signal receiving circuit 2 is connected with the infrared signal input terminal of the control circuit 3; the turntable drive signal of the control circuit 3 The output end is connected to the drive signal input end of the turntable drive circuit 4; the turntable drive circuit 4 sends a drive signal to the turntable drive device 50, and the turntable drive device 50 is used to drive the turntable 5 to rotate; the lifting frame drive signal output end of the control circuit 3 It is connected with the drive signal input terminal of the lifting frame driving circuit 6; the lifting frame driving circuit 6 sends a driving signal to the lifting driving mechanism 60, and the lifting driving mechanism 60 is used to drive the lifting frame 7 to rise or fall.

In this embodiment, the turntable driving device 50 can be realized by using a motor and a gear transmission mechanism.

In this embodiment, the lifting drive mechanism 60 can be realized by cooperation of a motor and a worm gear mechanism.

When the utility model is in use, the device is set on a flat table, and then the mathematical model is placed on the turntable. When the teacher is teaching, the teacher controls the rotation of the turntable or stops it by pressing the infrared signal transmitting circuit of the infrared remote control. In this way, the model on the turntable is driven to rotate or stay still, thereby realizing the all-round continuous intelligent display of the model. The utility model can fully meet the demand for all-round and continuous intelligent display of models in mathematics teaching.

Embodiment 2. The difference between this embodiment and the model display device for mathematics teaching described in Embodiment 1 is that it also includes a timer 8, the timer signal output terminal of the timer 8 and the control circuit 3 timer signal input terminal connection.

In this embodiment, the timer can be used to set a specific time value to control the rotation time of the turntable.

Embodiment 3. The difference between this embodiment and the model display device for mathematics teaching described in Embodiment 1 or 2 is that the control circuit 3 is realized by a single-chip microcomputer.

Claims (3)

1. for the model display device of mathematical education, it is characterized in that: it comprises turntable (5), crane (7), coupling shaft (9), base (10) and control module;

The end of crane (7) is fixed on the center of base (10) upper surface; One end of coupling shaft (9) is fixed on the top of crane (7); The bottom center of turntable (5) is connected with the other end bearing of coupling shaft (9); Described base (10) is parallel with turntable (5), and all parallel with surface level;

Described control module comprises infrared signal transmission circuit (1), infrared signal receiving circuit (2), control circuit (3), turntable driving circuit (4) and crane driving circuit (6);

Infrared signal receiving circuit (2) is for receiving the infrared signal of infrared signal transmission circuit (1) emission; The infrared signal output terminal of described infrared signal receiving circuit (2) is connected with the infrared signal input end of control circuit (3); The turntable of described control circuit (3) drives signal output part to be connected with the driving signal input of turntable driving circuit (4); Turntable driving circuit (4) sends and drives signal to driving device for rotary desk (50), and driving device for rotary desk (50) is for driving turntable (5) rotation; The crane of described control circuit (3) drives signal output part to be connected with the driving signal input of crane driving circuit (6); Crane driving circuit (6) sends and drives signal to lift drive mechanism (60), and this lift drive mechanism (60) is for driving crane (7) to rise or descending.

2. the device of the model display for mathematical education according to claim 1, is characterized in that it also comprises timer (8), and the timer signal output part of described timer (8) is connected with the timer signal input part of control circuit (3).

3. the device of the model display for mathematical education according to claim 1, is characterized in that control circuit (3) adopts chip microcontroller.

Images