Fist-clenching stretching type hand trainer for orthopedics department

The invention discloses a fist-clenching stretching type hand trainer for orthopedics department. The trainer comprises a finger drafting assembly, a support and a machine case, the support is installed on the machine case, the finger drafting assembly comprises a seat body, a static ring and a plurality of sets of dynamic rings, the seat body is installed on the support, the static ring comprises a static ring body and a vertical rod, the upper end and the lower end of the vertical rod are connected with the static ring body and the machine box respectively, each dynamic ring comprises a dynamic ring body, a main spring, a pull rope, a pressing block and a weight sensor, the upper end and the lower end of the main spring are connected with the pull rope and the dynamic ring body respectively, the other end of the pull rope upwards penetrates out of the base body and then is connected with the pressing block, multiple weight sensors are arranged on the top face of the seat body in a mode of surrounding the pu