A wearable dynamic joint rehabilitation device driven by rack and pinion

Abstract

The invention relates to a wearable power joint rehabilitation device with gear-rack driving. The device comprises an upper supporting plate and a lower supporting plate, wherein a push rod driving mechanism is disposed on the upper supporting plate, the push rod driving mechanism comprises a motor support, a motor, a gear and a rack; the motor support is fastened and connected to the upper supporting plate, the motor is fastened and connected to the motor support, an output end of the motor is fastened and connected to the gear, a slide groove arranged along the length direction of the upper supporting plate is formed in the motor support, the rack is connected in the slide groove in a sliding manner, and the gear is meshed with the rack; the rack is an output end of the push rod driving mechanism; and the bottom end of the rack is connected to a first end of a triangular connecting rod by a hinge shaft, a second end of the triangular connecting rod is hinged to the upper supporting plate, a third end of the triangular connecting rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the lower supporting plate.

Description

technical field [0001] The invention relates to a joint rehabilitation device, in particular to a wearable dynamic joint rehabilitation device driven by a rack and pinion. Background technique [0002] Auxiliary rehabilitation devices for the knee joint can generally be divided into wearable and non-wearable, power-driven and non-power-driven. Wearable auxiliary rehabilitation devices refer to devices worn outside the legs of the human body, which limit the extension and flexion of the joints within a suitable angle range, or maintain the knee joints at a certain angle, so as to promote early recovery of knee joint function. At present, the structure of wearable non-power-assisted rehabilitation devices is relatively simple, and generally supports and stabilizes the patient's damaged knee joint, and is relatively simple to use. Many power-assisted knee rehabilitation devices are non-wearable. This auxiliary rehabilitation device is more powerful than the wearable device. I...

AI Technical Summary

Problems solved by technology

The problem of direct drive is that there are many restrictions on space layout, insufficient motor torsional torque, and poor self-locking performance

The link drive can have more space options, and can provide a larger torque at a specific angle, and it is easy to realize the self-locking of the mechanism itself, but the problem of many link drive devices is that they are large in size and heavy in weight

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