Quick release structure for a bicycle

A quick release structure for a bicycle comprising:

• a quick release handle;
• a shaft comprising
• a cavity defined in an end of the shaft;
• a recess defined in a bottom of the cavity;
• an annular groove defined in an inner surface of the cavity;
• and
• a resilient member mounted in the annular groove, wherein the cavity has a diameter gradually increasing from the end of the shaft toward the recess;
• a clamping element having two ends, one of the ends of the clamping element connected with the quick release hand, and the other end of the clamping element extending into the recess;
• and
• a clamping member mounted around the clamping element and having an outer surface with a shape corresponding to a shape of an inner surface of the cavity in shape, wherein when the clamping element is combined with the quick release handle and the recess, at least a part of the clamping member is engaged with the cavity and two sides of the clamping member respectively abut against the bottom of the cavity and the quick release handle.