Connection structure for a gardening implement

A connection structure for connecting detachably a blade to a handle of a gardening implement, said connection structure comprising:

• a connection rod having a connector end, said connector end being provided with an annular tangent slot and two retaining blocks, said connection rod further having a fastening hole engageable with a fastening screw;
• a control member of a tubular construction and provided in an inner wall with a recess and a position confining slot;
• a locating head provided at one end with two locating holes, two cuts, and a position confining block;
• and
• two steel balls movably contained in said control member and said locating head;
• said connection rod being fastened with the blade of the gardening implement by the fastening screw which is engaged with said fastening hole of said connection rod, with the handle of the gardening implement being fastened with said locating head in conjunction with said steel balls and said control member, said retaining blocks of said connection rod being retained in said cuts of said locating head whereby said control member is rotated such that said control member and said locating head are confined by said position confining block of said locating head and said position confining slot of said control member, and that said steel balls are forced by said control member in motion into said locating holes of said locating head, so as to locate said connection rod, the handle of the gardening implement being unfastened with the blade of the gardening implement by rotating said control member in such a manner that said steel balls are forced back into said recess of said control member.