Arm stretching and bending demonstration model

The utility model relates to the field of human body models, and discloses an arm stretching and bending demonstration model which comprises a humerus rod, an ulna rod, a radius rod, a first spring dynamometer and a second spring dynamometer, the humerus rod is H-shaped, a joint plate is arranged at...

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Bibliographische Detailangaben
Hauptverfasser:	WANG CHENGLI, YANG YAN, REN WEIDONG, YANG RONG, YAN HUAMEI, LI JUSHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES PHYSICS PLANETARIA SEALS
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Beschreibung
Zusammenfassung:	The utility model relates to the field of human body models, and discloses an arm stretching and bending demonstration model which comprises a humerus rod, an ulna rod, a radius rod, a first spring dynamometer and a second spring dynamometer, the humerus rod is H-shaped, a joint plate is arranged at the bottom end of the humerus rod, one end of the ulna rod and one end of the radius rod are hinged to the joint plate, and the other end of the ulna rod and one end of the radius rod are hinged to the second spring dynamometer. The first spring dynamometer is installed in the middle of the side wall of the front portion of the humerus rod, the second spring dynamometer is installed in the middle of the side wall of the back face of the humerus rod, fixed pulleys are installed at the ends, close to the joint plate, of the ulna rod and the radius rod, and one end of the first spring dynamometer is connected to the tuberosity of the radius rod. And one end of the second spring dynamometer is connected to the olecran