Cable control structure

A cable control structure applicable to a seat tube of a bicycle, the seat tube comprising a main body and an adjustment switch, the adjustment switch being arranged in the main body and being suitable to control extension and contraction of the main body after being pushed, the cable control structure being suitable to push the adjustment switch, the cable control structure comprising:

• a base, suitable to be arranged in the main body and formed with an open groove, wherein the open groove is formed in correspondence to the adjustment switch;
• a cable, provided with a cable body and a magnetic attraction piece;
• a lever module, arranged in the open groove and provided with an actuating portion, a pivoting portion and a cable passing portion, wherein the pivoting portion is pivoted to the base, the cable passing portion is provided for the cable to pass through, and the actuating portion is suitable to push the adjustment switch;
• and
• a magnetic attraction portion, fixed in the open groove and adjacent to the cable passing portion,
• wherein the cable is positioned at the cable passing portion after the magnetic attraction piece and the magnetic attraction portion attract each other, and the cable body passes through the cable passing portion and is suitable to extend out of the main body to be connected to a controller;
• wherein the base has two inner side walls, the two inner side walls are positioned in the open groove and are opposite to each other, the lever module is arranged between the two inner side walls, one of the two inner side walls is formed with a positioning groove, and the magnetic attraction portion is fixed in the positioning groove.