Connector mechanism for pressing air charging device

The invention relates to a connector mechanism for a pressing air charging device. The connector mechanism for the pressing air charging device comprises a second connector and a first connector, wherein an annular groove is arranged in the second connector, a rubber ring is arranged in the annular groove, and an inner thread is formed on the inner wall surface of the annular groove; a step is formed in the first connector, an outer thread which is in match connection with the inner thread is formed on the outer circumference of the step, and a trapezoidal groove is arranged at the lower portion of the first connector. The first connector is screwed into the second connector, a spring is arranged in the trapezoidal groove, and the bottom of the first connector abuts against the rubber ring. Through holes allowing pipes to penetrate through are formed in the middle portions of the second connector and the first connector. The connector mechanism for the pressing air charging device is reasonable in structure and convenient to operate. Furthermore, by manufacturing straight pipe pressing connectors, pressing procedures are reduced, manufacturing cost is reduced, and work efficiency is improved.