Lockable or releasable wheel system with bidirectional input and one-way output

A lockable or releasable gear train with bidirectional input and one-way output, which is a lockable or releasable mechanism installed with a gear train with bidirectional input and one-way output, wherein the gear train is released through the operation of the lockable or releasable mechanism, when the input shaft is driven at reverse rotary direction by the output shaft, idling produced between the rotatable shell of the gear train with bidirectional input and one-way output and the machine body, or idling produced between the rotating parts of the gear train with bidirectional input and one-way output and the fixed shell, to prevent the gear train from the structural deficiency of rigid lock status when the input side is driven at reverse rotary direction by output side of the gear train with bidirectional input and one-way output;

• the operational features of the lockable or releasable gear train with bidirectional input and one-way output are as following:
• the first rotary direction and the second rotary direction are reverse;
• if the input terminal is driven by the first rotary direction, the first rotary direction output is produced through the first driving gear train driving the output terminal;
• if the input terminal is driven by the second rotary direction, the first rotary direction output is produced through the second driving gear train driving the output terminal;
• an one-way transmission is installed between the first driving gear train and the second driving gear train to avoid the interference from the second driving gear train when the first driving gear train is used to be the first rotary direction input and produces the first rotary direction output;
• an one-way transmission is installed between the second driving gear train and the first driving gear train to avoid the interference from the first driving gear train when the second driving gear train is used to be the second rotary direction input and produces the first rotary direction output;
• by way of the lockable or releasable mechanism being installed between the rotatable shell of the driving gear train and the machine body, or the lockable or releasable mechanism being installed between the fixed shell and the rotating parts of the gear train with bidirectional input and one-way output, to prevent the gear train from the structural deficiency of rigid lock status when the input side is driven at reverse rotary direction by output side of the gear train with bidirectional input and one-way output;
• the above forward and reverse rotary power source derives from one or more of the following power source, including human power, machine power, electric motors, hydraulic motors or pneumatic motors.