Internal combustion engine gear rack type driving mechanism

The utility model relates to an internal combustion engine gear rack type driving mechanism which alternate the transmission mode of a crank and connecting rod mechanism by a transmission mode of a transmission toothed rack and a pause gearwheel. One end of a connecting rod is connected with a piston, the other end is connected with the transmission toothed rack, a pause gearwheel A which is connected on an output shaft is meshed the transmission toothed rack, a pause gearwheel B which is connected on the propeller shaft is meshed with the transmission toothed rack, and the installation direction of the pause gearwheel An is opposite and alternated with the pause gearwheel B and is meshed with the transmission toothed rack. Link gearwheels are respectively arranged on the output shaft and the propeller shaft and are mutually meshed in order to make the linear motion of the piston convert to the rotating motion of the output shaft, and the rotating motion of the output shaft can be converted to the linear motion of the piston. With the technical proposal, the utility model can not only accomplish reducing the energy consumption and increasing the power transmission efficiency, and the utility model can extend the service life of the driving mechanism and reduce the repairing difficulty.