Demonstrator for verifying generation of carbon dioxide by human respiration in teaching

• Main Author: GE DEXIN
• Format: Patent
• Language: Chinese; English
• Published: 29.03.2022
• 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 a demonstrator for verifying carbon dioxide generated by human respiration in teaching, which relates to the field of experimental teaching and comprises two groups of plastic square bottles, screw plastic bottle caps are arranged at the tops of the plastic square bottles, the tops of the screw plastic bottle caps are connected with shunt pipes through plastic nuts, and two groups of one-way valves are mounted at one ends of the shunt pipes. The device exhales and inhales into the transparent cylinder through the breathing air assembly, verifies and compares the reaction of air and clarified lime water and the reaction of human expiration and clarified lime water, is used for verifying the generation of carbon dioxide by human respiration, and is scientific in design, simple to operate and high in practicability. The carbon dioxide content in the inhaled air and the exhaled air of the human body can be compared only through several times of simple inhaling and exhaling, the contras