Multipurpose adjustable economic management teaching display device

Abstract

The invention belongs to the technical field of economic management teaching devices, and discloses a multipurpose adjustable economic management teaching display device, which comprises a base, a support rod, a display device, a left teaching board and a right teaching board, a supporting rod is fixedly installed on the base, limiting cylinders are installed on the upper portion and the bottom inthe display device, and the upper ends of the supporting rods extend into the display device and are in limiting connection with the limiting cylinders. A left teaching board and a right teaching board are arranged on the display device, and a movable transparent writing board is installed on the front sides of the left teaching board and the right teaching board through sliding rails. Accordingto the display device, rotation of the first gear and the second gear is controlled through the motor, and lifting of the display device is achieved; the upper end of the colored tape is inserted intoa limiting through hole in the guide rod through a limiting insertion block, so that the colored tape is adjusted up and down; a teaching display screen is arranged, so that teachers can convenientlydisplay electronic teaching contents; and the extended display panel is arranged, so that teachers can write or display extended contents conveniently.

Description

technical field [0001] The invention relates to the technical field of economic management teaching devices, in particular to a multipurpose adjustable economic management teaching display device. Background technique [0002] In the process of economic management teaching, it is a frequent and necessary process to analyze and explain some data and information by using column charts, so as to explain in detail to students for comparison. However, the traditional way is that teachers draw manually on the blackboard The column chart is erased after use, and needs to be redrawn when necessary, which adds a burden to the teacher's teaching and delays the limited time of the classroom. Therefore, many teachers use some existing column chart demonstration teaching aids during the teaching process teaching, but most of the existing demonstration teaching aids are disposable models, which cause great waste in the process of use. There are also some demonstration teaching aids that c...

AI Technical Summary

Problems solved by technology

[0002] In the process of economic management teaching, it is a frequent and necessary process to analyze and explain some data and information by using column charts, so as to explain in detail to students for comparison. However, the traditional way is that teachers draw manually on the blackboard The column chart is erased after use, and needs to be redrawn when necessary, which adds a burden to the teacher's teaching and delays the limited time of the classroom. Therefore, many teachers use some existing column chart demonstration teaching aids during the teaching process teaching, but most of the existing demonstration teaching aids are disposable models, which cause great waste in the process of use. There are also some demonstration teaching aids that can be reused, but they are extremely inaccurate and can only be carried out according to the set distance. Demonstration, the contrast between each column graph is poor, the accuracy is low and the operability is poor;, such as Chinese patent CN201711192840.2 A kind of economic management teaching display device, including a teaching board, the teaching board is provided with a demonstration board, said The left side of the demonstration board is provided with a scale Y-axis, and the upper side of the demonstration board is provided with a scale X-axis. The bottom of the front of the demonstration board is provided with a horizontal support shaft. A roll of colored ribbon is horizontally provided with a rotating groove on the upper edge of the demonstration board. The upper end of the ribbon passes through the rotating groove and is provided with a clip. The ribbon is divided into two sections with distinctive marks, one of which is located on the demonstration board and the other One section is rolled into the bobbin sleeve, and the back of the demonstration board is also provided with a fixing belt corresponding to the ribbon from the upper edge to the lower edge

However, when the device adjusts the length of the ribbon, it needs to be fixed with a clip. On the one hand, the clip is easy to lose. On the other hand, this operation method is too cumbersome and needs to be improved.

[0003] In the display devices used in the teaching of economic management majors, when they are applied to the lecture hall, the height of the display device needs to be adjusted according to the size of the lecture hall, but these display devices are fixed in one place and have no height adjustment function , so it is not suitable for lecture halls of various sizes; not only that, when these display devices are running, the internal power supply circuit lacks the feedback detection function, resulting in unstable output voltage and fluctuations, which reduces the stability of the display device. sex

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