Toolbox handle structure of combination screwdriver

A toolbox handle structure of a combination screwdriver, the toolbox handle structure comprising:

• a handle, comprising a chamber and a tool slot communicating with each other, and comprising an opening defined on one end thereof communicating with the chamber;
• a receiving seat set, comprising a receiving tube, an inner sleeve and a push spring, the push spring elastically abutting against the receiving tube, wherein the receiving tube is movably arranged in the chamber, the inner sleeve is inserted in the receiving tube and comprises a containing slot, and a bead-holding recess and a hole are defined on one side of the inner sleeve adjacent to the opening;
• and
• a pressing-cap assembly, comprising a cap, a pressing set, a pressing spring and a bead, wherein the cap is combined on the opening, the pressing spring is disposed in the containing slot and abuts against the pressing set, the pressing set is partially exposed from the cap, and the bead is disposed in the bead-holding recess and pushed by the pressing set to protrude from the hole and abuts against the receiving tube;
• wherein the pressing set is moved by an external force to make the bead fall into the bead-holding recess to be released from abutting against the receiving tube;
• wherein the pressing set comprises a T-shaped plate and an I-shaped rod, one end of the I-shaped rod is connected to the T-shaped plate, and another end of the I-shaped rod abuts against the pressing spring;
• the T-shaped plate comprises a pressing plate and an extension rod, the pressing plate is exposed from the cap, a through hole is defined on the cap, and the extension rod is inserted in the through hole and abuts against the I-shaped rod;
• the pressing set further includes a C-clip, a groove is defined on the extension rod, and the C-clip is fastened on the groove;
• and
• the pressing set further comprises an outer spring, and the outer spring elastically abuts against the C-clip.