DEMONSTRATION MACHINE ENABLING THE COMPARISON OF A MASK FILTER

• Main Authors: DENG, JUN, Zhong, Shouyan
• Format: Patent
• Language: English
• Published: 19.12.2019
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; GLOBES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; PLANETARIA; SEALS; SEPARATION; TRANSPORTING

The present invention relates to a demonstration device enabling the contrast of mask filters comprising a cabinet wherein a dust cavity and a demonstration cavity with right opening are formed with a partition plate. On the partition plate is set a communication port to communicate the dust cavity with the demonstration cavity. On the upper part of the demonstration cavity, are set a dust collecting movable motor and a dust collecting movable screw which cooperate with each other, and on the said dust collecting movable screw, a dust collecting movable block is fixed by plug push cooperation. To the lower end of the dust collecting movable block, a dust collecting rotary motor is installed and under the dust collecting rotary motor, a dust collecting frame is installed. In the middle of the dust collecting frame, a dust collecting partition plate is installed. On the bottom of the dust collecting frame and on both sides of the dust collecting partition plates, dust collecting contrast blocks are installed. On either right and left sides of the dust collecting frame, a mask filter and contrast device which use masks to function which are both connected to the inner cavities are respectively installed. Both the mask filters and contrast devices are connected to the communication port. The present invention may directly present the dust-proof effects of the mask filters compared with common facial masks and achieve good teaching experience.