Teaching aid with lifting function for English teaching in colleges and universities

• Main Author: WU XIAONAN
• Format: Patent
• Language: Chinese; English
• Published: 17.12.2021
• Subjects: ACCESSORIES FOR WRITING OR DRAWING; ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; ARTICLES FOR WRITING OR DRAWING UPON; BLASTING; BUREAU ACCESSORIES; CABINETS; COFFEE MILLS; CRYPTOGRAPHY; DESKS; DIAGRAMS; DISPLAY; DOMESTIC ARTICLES OR APPLIANCES; DRAWERS; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; ENGINEERING ELEMENTS AND UNITS; FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE; FURNITURE; GENERAL DETAILS OF FURNITURE; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GLOBES; HEATING; HUMAN NECESSITIES; LIGHTING; MECHANICAL ENGINEERING; OFFICE FURNITURE; PERFORMING OPERATIONS; PHYSICS; PLANETARIA; SEALS; SPICE MILLS; STANDS OR SUPPORTS; SUCTION CLEANERS IN GENERAL; TABLES; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WRITING OR DRAWING IMPLEMENTS

The teaching aid comprises a lifting device, one end of the lifting device is provided with a power box, one end, far away from the power box, of the lifting device is provided with a placing table, the bottom end of the interior of the lifting device is provided with a rubber layer, the top of the rubber layer is provided with a hydraulic cylinder, and the hydraulic cylinder is provided with a lifting device. A fixing plate is installed at the top of the hydraulic cylinder, a supporting rod is installed at the top of the fixing plate, a connecting plate is installed at the top of the supporting rod, a writing device is installed at the top of the connecting plate, and a first connecting plate is hinged to the end, close to the power box, of the writing device; a second connecting plate is hinged to the end, close to the containing table, of the writing device. According to the teaching aid, the lifting device, the rubber layer, the hydraulic cylinder, the supporting rod, the fixing plate and the connecting p