Projection curtain winding and unwinding mechanism for online education

• Main Authors: FANG HUIWEN, LI XIAOMENG
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2020
• Subjects: ACCESSORIES FOR WRITING OR DRAWING; ACCESSORIES THEREFOR; ADVERTISING; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; ARTICLES FOR WRITING OR DRAWING UPON; BUREAU ACCESSORIES; CABINETS; CINEMATOGRAPHY; COFFEE MILLS; CRYPTOGRAPHY; DESKS; DIAGRAMS; DISPLAY; DOMESTIC ARTICLES OR APPLIANCES; DRAWERS; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; ELECTROGRAPHY; FURNITURE; GENERAL DETAILS OF FURNITURE; GLOBES; HOLOGRAPHY; HUMAN NECESSITIES; OFFICE FURNITURE; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; PLANETARIA; SEALS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; TABLES; TRANSPORTING; WRITING OR DRAWING IMPLEMENTS

The utility model relates to the technical field of projection, in particular to a projection curtain winding and unwinding mechanism for online education, which comprises a projection equipment bodyand a wall body for mounting the projection equipment body, the rear end of the projection equipment body is fixedly connected with a mounting plate, and the mounting plate is fixedly mounted on the wall body. The projection equipment body is internally provided with the curtain through the winding and unwinding device, the two ends of the bottom rod are limited and fixed after the curtain is unfolded through the first sliding rod and the second sliding rod, the stability of the unfolded curtain is good, the curtain is not prone to shaking, and the projection effect is improved; the first sliding rod is hinged to the second sliding rod, the second sliding rod and the balance rod can be conveniently turned over and fixed through the fixing device, and therefore the size of the stable framecan be conveniently reduce