Air compressor cylinder

An air compressor cylinder comprising:

• a crankcase equipped with a crank connecting rod assembly connected to an output shaft of a motor, wherein the crankcase is connected to an intake unit;
• a piston cylinder comprising:
• a cylinder body installed above and connected to the crankcase, and
• a noise reduction cylinder head installed at an upper end of the cylinder body,
• wherein an interior of the cylinder body is constructed as a piston chamber and an exhaust chamber that are connected through an exhaust vent, and
• wherein the exhaust chamber is connected to an exhaust unit, and a one-way exhaust valve group is installed at the exhaust vent to control one-way exhaust of the piston chamber to the exhaust chamber;
• a piston installed at an end of the crank connecting rod assembly, wherein the piston is configured to move back and forth along the piston chamber to compress air, and wherein the piston is provided with an air inlet and a single intake valve group, the single intake valve group used to control one-way intake of air from the air inlet into the piston chamber;
• and
• a soundproof cover installed outside of the piston cylinder.