Teaching aid with angle adjustability

Abstract

A teaching aid with angle adjustability comprises a supporting unit, a display board assembly, an adjusting unit, a placing frame and semicircular shells. The display board assembly comprises a firstfixed display board and a second display board. The second display board is arranged on the first fixed display board through a hinge device, and the hinge device can adjust the angle function of thesecond display board. The adjusting unit comprises two gear transmission assemblies and two lifting mechanisms connected with the gear transmission assemblies. Each gear transmission assembly comprises a driving bevel gear, a driven bevel gear meshing with the driving bevel gear and a sector gear arranged in an inner cavity of the corresponding semicircular shell in a hinged mode. A main transmission shaft is arranged in an inner hole of one driving bevel gear, and a connecting base which is connected with the placing frame in a welded mode is arranged at the end, close to the corresponding driving bevel gear, of the main transmission shaft. The split type adjustable teaching aid is simple and reasonable in structure and wide in application range, adjustment is conducted according to actual demands, the situation that the display effect is better is ensured, and clear and visual learning can be achieved.

Description

technical field [0001] The invention relates to the field of teaching aids, in particular to an angle-adjustable teaching aid. Background technique [0002] When teachers are in class, in order to be able to tell the content of the course more intuitively, they all use some teaching aids. When conducting some difficult teaching lectures, a teaching aid is needed to assist the teacher in teaching students in the learning process to improve Teaching quality and interest. [0003] In order to allow students to have a more intuitive and clear understanding of knowledge, the height of existing teaching aids used in primary and secondary schools is usually fixed and cannot be adjusted. When the desk is short, the demonstration board is easily blocked by the students in the front row, and cannot The students in the back row can see the teaching aid, so the viewing angle of the students in the back row may not be increased, resulting in a small range of display, and they cannot lea...

AI Technical Summary

Problems solved by technology

[0003] In order to allow students to have a more intuitive and clear understanding of knowledge, the height of existing teaching aids used in primary and secondary schools is usually fixed and cannot be adjusted. When the desk is short, the demonstration board is easily blocked by the students in the front row, and cannot Make the students in the back row see the teaching aid, so the viewing angle of the students in the back row may not be increased, resulting in a small range of display, and they cannot learn clearly and intuitively; thus affecting the quality of teaching

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