Wiper synchronous device without pull rod

The utility model discloses a screen wiper synchroshifter without pull rod, comprising a state control board and a screen wiper driving motor, and the utility model is characterized in that the utility model also comprises a synchronized signal generate circuit, an electronic switch control circuit and an intermittent signal input circuit. The synchronized signal generate circuit and the electronic switch control circuit of the utility model replace the traditional four mechanical parallel link bars. The synchronized signal generated by the synchronized signal generate circuit is transmitted to the screen wiper driving motor through the electronic switch control circuit and a photoelectric coupler, driving the screen wiper directly and realizing the synchronized rotation of the screen wiper. High speed, low speed and an intermittent gear of the utility model are realized by the state control board controlling the screen wiper driving motor. The utility model has the advantages of small volume, no limitation of mounting volume and convenient mounting, and because the photoelectric coupler has good signal insulation property, the utility model also has the advantages of little voice, almost no electromagnetic radiation and good interference property, being suitable for all kinds of vehicle.