Sand table demonstration device capable of automatically adjusting brightness

The utility model discloses a sand table demonstration device capable of automatically adjusting brightness, which comprises a sand table demonstration device main body, an electric telescopic rod is arranged on the inner bottom wall of the sand table demonstration device main body, a support plate...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	XU RUBING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE BLASTING CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF GLOBES HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED LIGHTING MECHANICAL ENGINEERING PHYSICS PLANETARIA SEALS STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a sand table demonstration device capable of automatically adjusting brightness, which comprises a sand table demonstration device main body, an electric telescopic rod is arranged on the inner bottom wall of the sand table demonstration device main body, a support plate is arranged on the top of the electric telescopic rod, and an installation plate is movably arranged on the inner side of the support plate. A motor is installed at the bottom of the sand table demonstration device body, a rotating rod is installed at the output end of the motor, and an illuminating lamp a is installed on the outer wall of one side of the sand table demonstration device body. The rotating rod can be driven to rotate when the motor operates, the mounting plate can be driven to rotate when the rotating rod rotates, so that the angle of the mounting plate is adjusted, the sand table demonstration device main body can display in multiple directions, and the operation of the electric telescopic rod can