当活塞下行时，棘轮连接活塞杆和发动机轴，因此将功率输送出去。
As the piston descended, a ratchet engaged the piston rod and engine shaft and thus power was transmitted.
在芯杆上套上一个带有扳把的棘轮，双手并用，就可以较轻松地拧紧或卸下螺丝。
A ratchet wheel with a handle is sheathed on the core bar, and a screw can be easily screwed down or unscrewed by both hands.
它由地轮、传动销、传动拐臂、传动插杆、回位弹簧和传动棘轮组成。
The utility model is composed of a land wheel, a driving pin, a driving crank arm, a driving inserted link, a release spring, and a driving ratchet.
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