Portable upper limb rehabilitation mechanical arm with grading adjustment training function

A portable upper limb rehabilitation mechanical arm with a grading adjustment training function, comprising a big arm component, a supporting component, a grading adjustment component, a small arm component, a wrist component and a hand component, wherein

• the big arm component comprises a big arm shell, a big arm back plate, a first big arm support and a second big arm support;
• the first big arm support and the second big arm support are respectively connected with the big arm back plate through first bolts;
• the big arm shell is connected with the big arm back plate through second bolts;
• an arc-shaped groove is formed in the big arm back plate;
• the supporting component comprises a supporting base, an inner supporting rod, an outer supporting rod, a sealing piece, a reversing component and a connecting bolt group;
• the reversing component comprises a cover plate, a ratchet wheel, a ratchet, a reset spring and a button;
• the reversing component is mounted on the supporting base and sealed through the cover plate;
• the inner supporting rod and the outer supporting rod are coaxially assembled and connected;
• the inner supporting rod is connected with the ratchet wheel;
• the inner supporting rod and the outer supporting rod are capable of being accommodated in the supporting base and sealed through the sealing piece;
• the supporting component is fixed on the big arm back plate through the connecting bolt group;
• the first big arm support and the second big arm support are respectively fixedly connected with the supporting base through screws;
• the grading adjustment component comprises an elbow motor shell, an elbow joint motor and an adjusting component;
• the adjusting mechanism comprises a knob cap, a knob spring, an adjusting knob, a wire plate, a wire plate cover plate and an upper limited block;
• the elbow motor shell is fixed on the big arm back plate through third bolts;
• the wire plate is fixed on the big arm back plate through the wire plate cover plate;
• six same through holes are respectively formed in the wire plate and the wire plate cover plate;
• one end of the adjusting knob penetrates through the six same through holes, and the other end of the adjusting knob penetrates through the arc-shaped groove in the big arm back plate and is in threaded connection with the knob cap;
• the knob spring is mounted on the adjusting knob;
• the small arm component comprises a first small arm support, a second small arm support, a small arm back plate and a small arm shell;
• the first small arm support and the second small arm support are respectively connected with the small arm back plate through fourth bolts;
• the small arm shell is connected with the small arm back plate through fifth bolts;
• the grading adjustment component is connected with the big arm component and the small arm component;
• the wrist component comprises a first wrist joint motor, a second wrist joint motor, a first wrist motor shell, a second wrist motor shell, a first wrist supporting plate and a second wrist supporting plate;
• the first wrist joint motor is connected with the small arm back plate and the first wrist supporting plate, and the first wrist motor shell is fixed on the first wrist supporting plate through sixth bolts;
• the second wrist joint motor is connected with the first wrist supporting plate and the second wrist supporting plate, the second wrist motor shell is fixed on the second wrist supporting plate through seventh bolts, and the second wrist supporting plate is connected with the hand component;
• the hand component comprises a palm pad and joint vibration components;
• the palm pad is provided with a hand binding band;
• each of the joint vibration component comprises a finger binding band, a microvibration unit and a plug;
• and the microvibration unit is fixed on the finger binding band and sealed through the plug.