Automobile compressor piston

An automobile compressor piston, comprising:

• an automobile compressor piston (1) including a packing (111), a piston ring (12), a connecting rod (13), a bearing (14) and an cam (15);
• wherein
• the packing (11) being a ring with a hollow center and including two fixing holes (111, 112) at an upper side thereof;
• the piston ring (12) located between the packing (11) and the connecting rod (13) for preventing from friction between the packing (11) and the connecting rod (13) so that the connecting rod (13) will not be abraded or run unevenly;
• the connecting rod (13) comprises a locking hole (131) and a suction valve (132) on a top thereof;
• a thread part (133) on a side surface for locking the packing (11) so that the packing (11) enclosing the thread part (133) of the connecting rod (13);
• two grooves (134) at a center portion thereof;
• and, a round hole (135) at a bottom thereof;
• the bearing (14) is deposed in the round hole (135) at the bottom of the connecting rod (13), comprising a shaft hole (141) at a center thereof;
• the cam (15) comprises a camshaft (151) to be inserted into the shaft hole (141) of the bearing (14);
• an eccentric hole (152) on an opposite side surface to the camshaft (151);
• and a locking hole (153) on a side surface to the eccentric hole (152);
• the cam (15) has a sector shape, which is a weight block to drive the piston (1) to move upward and downward.