Demonstration device for English teaching

• Main Author: WANG JIANGMAN
• Format: Patent
• Language: Chinese; English
• Published: 19.11.2021
• 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; FURNITURE; GENERAL DETAILS OF FURNITURE; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GLOBES; HEATING; HUMAN NECESSITIES; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; OFFICE FURNITURE; PERFORMING OPERATIONS; PHYSICS; PLANETARIA; SEALS; SHOCK-ABSORBERS; SPICE MILLS; SPRINGS; SUCTION CLEANERS IN GENERAL; TABLES; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WRITING OR DRAWING IMPLEMENTS

The utility model provides a demonstration device for English teaching, which comprises a main panel, a mounting groove is arranged on the outer wall of one side of the main panel, a dust collector is fixed on the inner wall of the bottom of the mounting groove, a rectangular groove is arranged on the outer wall of the other side of the main panel, and a blackboard is adhered on the inner wall of the rectangular groove. A rectangular groove is formed in the main panel, multiple sets of symmetrically-formed dust suction openings are welded to the inner walls of the two sides of the rectangular groove, a dust storage bin is further formed in one side of the mounting groove of the main panel, a dust storage bin cover is hinged to the top of the dust storage bin, and the dust outlet end of the dust collector communicates with the inner top of the dust storage bin through a pipeline. The dust absorption device is arranged on the main panel, and the dust collector can absorb chalk dust into the dust storage bin fro