Portable universal teaching aid for education and teaching

• Main Authors: ZHANG CAILI, JIN LIXIN, YANG WEIMIN, MENG YUXUE, ZHANG XIANGBING, HU YAOZHI
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; PHYSICS; PLANETARIA; SEALS

The utility model discloses a portable general teaching aid for education and teaching, and relates to the technical field of teaching aids. The device comprises a main body, the main body comprises a first display board and a second display board, and the first display board is rotatably connected with the second display board. Before outdoor teaching, when teaching paper is prepared, a clamping lock mechanism is opened, a first display board and a second display board are separated, a T-shaped sliding rod slides to enable a telescopic rod to move towards the top in a first arc-shaped shell, then the reel-shaped paper is installed on a fixing column at the bottom in the first arc-shaped shell, at the moment, the telescopic rod slides, and the teaching paper is placed in the first arc-shaped shell. The bottom end of the limiting plate makes contact with one side of the roll paper, then the screw rod is rotated, the T-shaped sliding rod is fixed to the column, the paper is fixed into the display board, and the