Demonstration device for English teaching

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 t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WANG JIANGMAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	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