Knee joint structure with dual oil pressure control

Abstract

A knee joint structure with dual oil pressure control comprises a knee joint head, an oil pressure axis and an oil seal, wherein the knee joint head, the oil pressure axis and the oil seal form a first oil pressure control structure and further a second oil pressure control structure is provided, wherein in the second oil pressure control structure a rotatable valve for strength adjustment is arranged on the knee joint head and an upper oil line, a lower oil line and a middle oil line, which are continuously connected to the upper and lower oil chambers, are provided in the knee joint head.The second oil pressure control structure has the function of adjusting the upper and lower limits of the oil pressure strength, allowing the user to decrease or increase the oil pressure strength without adjusting the valve needles in four stages: high, medium, low, and zero. This allows the oil pressure strength to be adapted to the user's various dynamic movements, such as: 1. When walking quickly, the pressure adjustment valve is set to high; 2. When walking normally, the pressure adjustment valve is set to medium / low strength according to the user's habits; 3. When cycling, the pressure adjustment valve is set to zero strength, as the movements in cycling are very fast and the user should not experience any resistance.

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