关节螺杆
The end surface of the positioning screw cap of the equalizing axle is matched with an equalizing axle shell or the end surface of a swing arm.
平衡轴定位螺盖的端面与平衡轴壳或者摆臂的端面相配合。
The utility model can increase the swing assisting angle and the swing assisting strength through adjusting the central adjusting screw bolt to meet the requirements of different patients.
它通过调节中心调节螺杆可增加助摆角度和助摆力量,以适应不同患者的需要。
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