MECHANISM THAT IS NON-ENGAGING IN FORWARD DIRECTION AND PREVENTS DIRECTION CHANGE

摘要

Provided is a forward idling reverse steering mechanism, including a double-ratchet-wheel sleeve (1), provided with a forward one-way ratchet wheel inner gear ring and a reverse one-way ratchet wheel inner gear ring in an axis direction thereof; a pawl base (2), provided with a first pawl (21) and a second pawl (22) capable of moving in a direction perpendicular to an axis of the double-ratchet-wheel sleeve; an eccentric driving mechanism (3) for driving the first pawl and the second pawl to act, an axis of an eccentric wheel shaft (32) in the eccentric driving mechanism being perpendicular to the axis of the double-ratchet-wheel sleeve; and a tool handle (4) for driving the pawl base to rotate, the tool handle being connected and fixed to an eccentric wheel (31) or the eccentric wheel shaft (32) in the eccentric driving mechanism to achieve linkage of the tool handle and the eccentric wheel. The forward idling reverse steering mechanism can meet the working condition requirements in various states, and can also achieve torque transmission and state switching directly through the handle.