转动套

反向转动顶套时，触片离开斜面，竖杆向上弹回，马达电路被断开。

When the top sleeve is reversing-rotated , the contact piece leaves the inclining surface , the upright rod is bounced back upwards , and the motor circuit is cut off .

其具有位于转动内杆套置段上方的套置段及穿出第一固定座的螺锁段；

The output shaft is provided with the covering section and a screw locking section and is articulated at the first stationary seat .

不带套环的导套一侧必须正对着带转动槽的接合套一侧。

The guide sleeve side without a collar must be facing the shift sleeve side with the turned groove .

定速转动单元包括呈转动穿于第一、二固定座并由动力传动单元驱动的转动内杆及套设于转动内杆外的固定外管；

The constant speed transmission structure includes a constant speed rotating unit and a power transmission unit which is arranged inside the secondary stationary seat .