Ideology and politics theory course explains with removing projection panel

• Main Authors: LI RONGSHENG, ZHAO SHUCE, GUO CHUANG, SONG JIANGZHAO, ZHANG FANGFANG
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2016
• 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 utility model discloses an ideology and politics theory course explains with removing projection panel, including knob, projection cloth, bracing piece, limited slip buckle, through -hole, sliding sleeve, screw rod, slider, base, anti -skidding cushion and spout, its characterized in that: the middle part connection of bracing piece is fixed with the sliding sleeve, the sliding sleeve cover is on adopting the screw rod of threaded connection on the slider, still be provided with projection cloth between the bracing piece, the beneficial effects of the utility model are that: still install the knob on the bracing piece, it is rotatory together that the knob can drive the bracing piece, rotatory bracing piece can drive projection cloth and rotate, can adjust the size of projection cloth according to the teaching demand at will, be provided with the through -hole on the screw rod, and the buckle has the limited slip of fixing on the sliding sleeve to detain in the through -hole, the sliding sleeve can be fix