Patent ID: 7213830

Claim:
A detachable device, comprising a main body and an auxiliary wheel unit, wherein: the main body is fixed on a bottom of a golf cart and has an inside formed with a mounting recess which has an opening directed downward, the mounting recess has a rear sidewall formed with a through hole, a drive handle is pivotally mounted on the rear sidewall of the mounting recess eccentrically, the drive handle has an end formed with an eccentric cylindrical urging portion pivotally extended through the through hole of the main body into the mounting recess; the auxiliary wheel unit includes a wheel support rack and an auxiliary wheel, the wheel support rack is extended upward and has a hollow shape, the wheel support rack has a top end provided with a plastic block which is inserted into the mounting recess of the main body, the plastic block is formed with a locking groove aligning with the through hole of the mounting recess; wherein when the plastic block at the top end of the wheel support rack is inserted into the mounting recess of the main body, the drive handle is driven so that the urging portion of the drive handle is eccentrically extended through the through hole of the mounting recess and locked in the locking groove of the plastic block to form a close combination state, so that the auxiliary wheel unit is attached to the bottom of the golf cart and can be detached and assembled easily.