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.
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 ratchet pawl is arranged on the spacing sliding block with a ratchet pawl pin. The spacing sliding block can move in the horizontal chute.
棘爪用棘爪销子安装在限位滑块上，限位滑块可在水平滑槽中运动。
The ratchet pawl is arranged on the spacing sliding block with a ratchet pawl pin. The spacing sliding block can move in the horizontal chute.
棘爪用棘爪销子安装在限位滑块上，限位滑块可在水平滑槽中运动。
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