Lever principle demonstration teaching aid convenient for assembling

• Main Author: FANG ZIYING
• Format: Patent
• Language: Chinese; English
• Published: 19.10.2018
• 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 invention discloses a lever principle demonstration teaching aid convenient for assembling. The lever principle demonstration teaching aid convenient for assembling comprises a fixing base and a turntable, the upper surface of the fixing base is provided with a fixing groove, the interior of the fixing groove is provided with a hidden groove, the interior of the hidden groove is fixedly connected with limiting springs, one end of each limiting spring is fixedly connected with the inner wall of the hidden groove, and the other end of each limiting spring is fixedly connected with a limitingplate, the upper surface of the limiting plates are provided with first gear grooves. The lever principle demonstration teaching aid convenient for assembling is capable of, through installing a second gear groove on the outer wall of a vertical rod, enabling a first gear and a second gear to drive two limiting plates to be close to each other while the vertical rod is inserted in the fixing groove, effectively fixing th