Tricycle kick board

A tricycle kick board comprising:

• a pillar shaft having a front wheel rotatably mounted to a lower portion thereof;
• a steering unit mounted to an upper portion of the pillar shaft;
• a joint unit disposed on the pillar shaft;
• and
• left and right moving frames connected at one portion thereof to the joint unit and at another portion thereof to left and right foot rest assemblies, respectively, each of the left and right foot rest assemblies having a wheel disposed thereunder,
• wherein the joint unit comprises:
• a main body fitted to the pillar shaft so as to be pivotable about the pillar shaft, the main body further including upper and lower bodies fitted to the pillar shaft and coupled to a top and bottom of the main body, respectively;
• upper and lower bearings fitted to the pillar shaft and disposed above and below the upper and lower bodies, respectively;
• and
• upper and lower fastening nuts disposed above and below the upper and lower bearings, respectively, the upper and lower fastening nuts being fastening with the pillar shaft;
• a main shaft fastened to a side of the main body;
• and
• a supplementary body pivotally mounted to the main body so as to be pivotable about the main body.