Folding structure of a children tricycle

Claim 1

A folding structure for a tricycle, the structure comprising a pivotal seat connected to a bending connection section of a front wheel fixing rod, the center of two lateral sides of the pivotal seat being connected to a rear wheel fixing rod and the top of the pivotal seat being connected to a seat such that the front and rear wheel fixing rods provide rotation, and a support rod having top and bottom ends which are bent, the ends being mounted to the front and rear wheel fixing rods, wherein two side boards of the pivotal seat are provided with sloping front and rear arched notches, and a sectional hole is provided to the rear wheel fixing rod near the top end of the pivotal seat, such that the top end of the support rod passes through the sectional hole, and engages the front and rear notches; the rear wheel fixing rod further being connected to a fixing seat having a pair of symmetrical fixing holes at the top of the fixing seat, fastening holes provided at different positions such that the two bottom ends of the support rod are pivotally connected to wheel rods of a pair of rear wheels; a through hole on each wheel rod provided with a fastener having a spring, the wheel rods using the through hole as a fulcrum to provide extending and folding function such that the fastener is fastened at one fastening hole for use of the tricycle, and another fastening hole for storage in a folded position.